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Date submitted2012-07-10
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Date accepted2012-09-30
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Date published2013-01-01
In memory of Andrei Mitrofanovich Zhuravscky
- Authors:
- * *
Article on the 120th anniversary of his birth
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Date submitted2012-07-25
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Date accepted2012-09-30
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Date published2013-01-01
Experience of the complex application оf geophysical and geoelectrochemical methods for the prediction and prospecting оf mineral deposits
- Authors:
- S. G. Alekseev
- S. A. Veshev
- N. A. Voroshilov
Due to the complexity of prospecting and exploration of deep seated mineral deposits, there are new requirements for the methods used. Methods should be focused on the structural and tectonic characteristics of target objects. A set of methods, including gravity, magnetic, geoelectrochemistry is intoduced. This article describes applying of this complex technology and an example of using it effectively is given.
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Date submitted2012-07-04
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Date accepted2012-09-02
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Date published2013-01-01
High resolution helicopter-borne electromagnetic surveying in 1:5000 scale
The resolution increasing problems are discussed for airborne electromagnetic survey. It is a key issue for searching small isometric in plan objects, like kimberlite pipes. The theoretical possibility of survey with 50 m distance between lines is shown. Necessary practical requirements are declared for such scale. They are a solution of navigational task, transmitter positioning with respect to receiver and with respect to the ground, system’s geometry limitations. Future trends are analyzed on acquired data for detailed surveying on adjacent territories of ex- ploited or duffer deposits.
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Date submitted2012-07-05
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Date accepted2012-09-09
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Date published2013-01-01
Complex examination of grounds on the sewage lines by geophysical methods
- Authors:
- A. F. Volynin
The results of experimental and methodical works complex of geophysical methods in two sewer lines. One line has been previously surveyed by tele to develop criteria for identifying areas of geophysics pipeline emergency requiring major repairs. A comparative analysis of materials telephoto and geological and geophysical data suggested a criterion for allocation of emergency pipeline sections only on geophysical data (without telephoto). This technique has been used in the assessment of sewer pipe at the emergency site, where the tele was not possible. The results of the geophysical survey were confirmed during the overhaul.
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Date submitted2012-07-11
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Date accepted2012-09-07
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Date published2013-01-01
The effect of integration robust regression analysis with inversion of transients for median gradient method at study of diatremes on Anabar shield
For diatremes searching on Anabar crystalline shield classical scheme with measuring in both in frequency and time domain has been used. Using original algorithms in combination with robust statistical methods allow to significantly increase efficiency information quality of the field material and detect transient during switch on current pulse. The robust regression procedure was used for removing curves dependence from transmitter-receiving setup. Sediments covered diatreme was discovered in the vicinity of etalon object. The diatreme, which was verified more recently by a borehole, was non manifested in the resistivity map. Inversion of areal data of transients was performed within five-layers one dimensional induced polarization model and sensitivity is observed up to 1200 m depth.
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Date submitted2012-07-13
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Date accepted2012-09-10
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Date published2013-01-01
Similarity and difference in structure of the Ural and Paikhoy-Novaya-Zemlia fold belts
Characteristic features of deep structure and composition of Ural (UFB) and Paikhoy-Novaya-Zemlia (PNZFB) fold belts, which were investigated with the use of results of geological and geophysical investigations along reference geophysical profiles (geotransects) are considered. In the structure of Uralian deep sections typical elements of collisional orogen are distinguished: deformed margin of submerged plate, suture zone and deformed margin of override plate. Participation in the process of the Late Paleozoic collision more than «Baltic» и «Kazakhstan» plates, but micro plates of continental type lead to complication of typical model of collision orogen due to inclusion into the UFB deep structure additional blocks and suture zones. PNZFB zonality is not typical for classical collision orogens. Fold-thrust belt on the «Svalbard» plate margin is modeled in its deep section. Intensity of the fold-thrust deformations decreases to relict oceanic basin, which is modeled in the basement of the South-Kara sedimentary depression.
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Date submitted2012-07-28
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Date accepted2012-09-25
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Date published2013-01-01
Search criterions of sulphide skarn ore mineralization in the north part of Lake Ladoga region
The results of complex geophysical and geochemical investigations on testing area, which is developed now for student field search and exploration trainings in the north part of Lake Ladoga region, are presented. Model objects corresponding to different geological situations (zones of tectonic faults, metamorphic carbonaceous-siliceous rocks and ore skarns) have been chosen for student field trainings. Manifestation of these objects in geophysical and geochemical fields is concidered. Here we show a number of signs and criterions of ore skarns and graphitic deep faults (ore canals).
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Date submitted2012-07-12
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Date accepted2012-09-08
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Date published2013-01-01
Georadar researches of structural features and water cutting of overburden rocks for coal open-cast mining
The results of georadar researches of overburden rocks in the coal deposits for identify the areas of the water cutting and disturbance have been presented. The contouring of zone of the water cutting of overburden rocks on Kangalassky coal deposits has been done. Based on drilling data, the GPR method has been identified and localized hading coal seam of Neryungrinskiy coalfield.
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Date submitted2012-07-05
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Date accepted2012-09-21
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Date published2013-01-01
Means of measuring of specific resistivity of ground with assistance of rods of dinamic or static set for ground testing
- Authors:
- A. A. Miller
One can take rod of set for ground testing as one of electrodes in four-point set for measuring of specific resistivity of soil. With help of current and voltage measuring on electrodes of this set, we can obtain value of specific resistivity of soil with accordance of depth.
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Date submitted2012-07-18
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Date accepted2012-09-24
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Date published2013-01-01
Inspection of oil and gas wells casing by the method of electromagnetic flaw detection
Logging tools for electromagnetic flaw detection, developed in VNIIGIS, provide inspecting well conditions with and without (EMDS-TM-42 tools) lifting of compressor tubing. In case of inspecting with lifting of tubing (EMDS-S tool) we can observe holes, made by drilling perforation tool. Examples of logging investigations in Russia, Oman and China are presented.
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Date submitted2012-07-16
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Date accepted2012-09-23
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Date published2013-01-01
Preliminary results of deep magnetotelluric sounding on geophysical base of moscow university in Kaluga region
- Authors:
- E. V. Moilanen
- P. Yu. Pushkarev
- N. L. Shustov
Since May 2011 we have collected long-period magnetotelluric (MT) data in non-magnetic pavilion on geophysical base of Moscow University in Kaluga region. Three sets of electrical lines with different types of electrodes were installed. Different groups of authors have made processing of MT records, calculation of apparent resistivity curves. These curves were compared with apparent resistivity curve obtained on magnetovariational data of Moscow observatory. The 1D inverse problem was solved for the deep part of the generalized curve (T > 30 s). In particular we succeeded in finding preliminary conductivity values on the depth of crust, upper and middle mantle.
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Date submitted2012-07-24
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Date accepted2012-09-15
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Date published2013-01-01
Transient electromagnetic soundings application for oil and gas investigation in Western Siberia
- Authors:
- N. N. Nevedrova
- A. M. Sanchaa
Transient electromagnetic soundings with a controllable source (TEM) have been tested at performance of prospecting works for hydrocarbons in Western Siberia. During researches high resolution, depth of investigation, locality of research of TEM has been revealed at rather small sizes of installation (it is less than depth of investigated object). As a result of interpretation of TEM field data the map of depths to productive horizon (bajenov formation) on which it is allocated low-amplitude an anticlinal raising is constructed. On the basis of geological interpretation this raising is recognised by perspective on hydrocarbons.
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Date submitted2012-07-12
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Date accepted2012-09-06
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Date published2013-01-01
Surface electrical tomography for taliks mapping (Taimyr Peninsulа)
The technique and results of electrical explorations using electrical tomography procedure in permafrost on the Taimyr Peninsula are presented. The zones of permafrost, «sluggish» frozen zones and thawed soils (talik) are revealed and identified based on the values of resistivity. The authors suggest the method of interpretation with the help of the electrical resistivity spatial gradient for the identification of sediments in the cross-section. It was found that the areas with high-gradient of resistivity correspond to the frozen loam, and the areas of low gradient coincide with the sand layers in the permafrost.
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Date submitted2012-07-17
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Date accepted2012-09-13
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Date published2013-01-01
Conditions of the natural electric field formation at the silicate nickel deposits of weathering crust
Possibility of the natural electric field formation in conditions of the lateritic weathering crust of the ultra basic rocks in presence of extended in depth magnetite bearing bodies is proved. Theoretical curves of concentration of the dissolved oxygen and oxidized forms of magnetite are obtained. It is enough satisfied coincidence with the experimental data.
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Date submitted2012-07-17
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Date accepted2012-09-17
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Date published2013-01-01
Riftogenic structures in the west sector of amerasia basin based on complex geophysical data
- Authors:
- O. E. Smirnov
The time seismic reflection sections obtained in Podvodnikov basin (Central Arctic) during expedition «Shelf-2011» were interpreted. The tectonic zoning of Podvodnikov basin and adjacent structures was carried out with the use of lineamental analysis of bathymetric, anomalous gravitational and magnetic maps. The distribution of riftogenic structures is shown within the whole Podvodnikov basin. The thickness of riftogenic complexes reaches 5 km.
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Date submitted2012-07-05
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Date accepted2012-09-17
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Date published2013-01-01
Features of processing of seismic materials of a method of the reflected waves
- Authors:
- A. N. Telegin
Bring the general scheme of processing including six operations which will transform field seismic recordings to change of elastic properties of the studied geological environment. Considered physical appointment and necessity of performance of each operation of processing. At the expense of recurrence of performance of four operations (the account of influence upper part of section, definition of speeds, easing of hindrances and increase detectability records) is formed a real processing graph of materials.
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Date submitted2012-07-03
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Date accepted2012-09-01
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Date published2013-01-01
Application of GPR-technologies for the development of diamond fields permafrost
- Authors:
- L. L. Fedorova
- A. V. Omelyanenko
In recent years, the complex of geophysical methods used in solving a wide range of tasks associated with the study of the upper part of the geological section, are increasingly attracted to the method of GPR. The advantages of GPR method are high efficiency and resolution, both in terms of, and in the sequence, the ability to work under any conditions. This paper is presented a methodical working out for perfection GPR technology to study the geological structure of the inhomogeneities of the array of frozen rocks. Application of the developed technology allows to map the spatial distribution of permafrost and placer deposits is possible to optimize the amount of geological sampling and technology of deposits by selective extraction of the productive sands.
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Date submitted2012-07-29
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Date accepted2012-09-15
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Date published2013-01-01
Difference in galvanic and inductive methods' results, new examples for DIP and BIEP
Difference in apparent resistivity values determined in galvanic and inductive electrical and electromagnetic methods depends on macroanisotropy of layered cross-section and decreased penetration depth of galvanic methods without changing penetration depth of inductive methods. Joint influence of these two factors in case of high contrast of layers' resistivities results in difference in several tens of apparent resistivity values.
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Date submitted2012-07-15
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Date accepted2012-09-10
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Date published2013-01-01
Anisotropy investigations with azimuthal self potential measurements
- Authors:
- V. A. Shevnin
- S. A. Erokhin
- A. M. Pavlova
New field technology for studying anisotropy of hydraulic properties in fractured rocks on azimuthal self potential (SP) measurements, developed by D.N. Wishart and L. Slater, is considered and used to study water filtration in loose grain sediments of river floodplain. Azimuthal SP diagrams allow finding direction of groundwater filtration and can add to traditional azimuthal resistivity survey.
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Date submitted2012-07-19
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Date accepted2012-09-04
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Date published2013-01-01
Ongonitic magmatism of the Badzhalsky ore district (Amur River region)
- Authors:
- V. I. Alekseev
In the Mesozoic history of the volcano-plutonic magmatism of Badzhalsky area the fourth Late Cretaceous ongonitic stage is specified. The ongonitic magmatism of the Amur River region was evolving during several hundreds of thousand years, had cellular nature and eventuated in the zinnwaldite-microcline-albite granitoids formation with rare-metal accessory complex. In the near-contact zone of the Verhneurmiysky massif Pravourmiysky ongonitic complex, which controls the biggest tungsten-stanniferous deposits of the area and includes ongonite dykes and rare-metal granites of the Dozhdlivy intrusive dome, is determined.
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Date submitted2012-07-17
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Date accepted2012-09-21
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Date published2013-01-01
Biostratigraphy of deposits upper riphean in the Biryusa structure-facial zone by stromatolites and microphitolites
- Authors:
- A. Yu. Anisimov
Riphean deposits in the Biryusa Structure-Facial Zone is represented by the Karagass Group consist of the Tagul and Ipsit Formations. Stromatolites and microphitolites are common in the Prisayan region. Upper Riphean complex of Stromatolites and microphitolites is determinate in Biryusa Structure-Facial Zone. Each is compared with same of association in the stratotype section of Patom’s Zone.
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Date submitted2012-07-29
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Date accepted2012-09-04
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Date published2013-01-01
Mineral and energy resources of Siberian platform and prospects of their development
- Authors:
- V. B. Archegov
The high estimate and integrated development of mineral and energy potential of the subsoil of the Siberian platform will provide development of new areas of exploration and expansion of resource base in the east of Russia, and provide conditions for the county’s entrance to the Asia-Pacific market.
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Date submitted2012-07-05
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Date accepted2012-09-15
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Date published2013-01-01
Hydrocarbon systems of Siberian platform
- Authors:
- V. B. Archegov
Hydrocarbon systems are discrete systems, expressed in terms of different scale elements of the earth's crust (blocks!), in which hydrocarbon-bearing minerals are regularly located. Hydrocarbon systems are divided into primary and secondary. High dynamics of the Siberian platform in all stages of its development determined the forms and migration paths of naphthides and specific structural forms of sedimentary cover, containing hydrocarbon deposits.
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Date submitted2012-07-27
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Date accepted2012-09-02
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Date published2013-01-01
Geodynamic types of rare-metal granite magmatism and associated ore deposits
- Authors:
- S. M. Beskin
- Yu. B. Marin
Matrix systematic of the rare-metals granite magmatism and related ore metallization is represented as a table, where geodynamic types of intrusive groups form columns, and genetic types of ore metallization – lines (from rare-metal volcanites, granites and pegmatites to weathering crusts and placers). Cells in crossing of lines and columns include as well known so probable geological-industrial types of ore deposits. Analysis of this table shows which types of deposits may be combined in clusters, and which ones correspond to principally different ore-magmatic systems and, thus, can’t occur in a common cluster (except in combination of diachronous groups). Regularities of the rare-metal granites distribution through geological time correlate with the direct evolution of geodynamic environments in the Earth’s history.
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Date submitted2012-07-29
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Date accepted2012-09-27
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Date published2013-01-01
Registration of the faceted gems absorption spectra
- Authors:
- E. A. Vasilev
There is shown the possibility of recording the visible and infrared absorption spectra in the faceted gems, including those in jewels. Investigation was carried out with the infrared/visible range spectrometer, equipped with a microscope working in the reflection mode. It is demonstrated the possibility to detect signs of treatment, synthetic origin of diamonds of the main shapes without any sample preparation or removing from jewels.
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Date submitted2012-07-03
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Date accepted2012-09-07
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Date published2013-01-01
Comparative analysis of Uralian, Anabar and Brazilian diamonds by infrared spectrometry method
Uralian, Anabar, and Brazilian diamond collections were studied by infrared spectrometry method. For reconstruction of thermal conditions of diamond formation were plotted Taylor Wayne diagrams with calculated isothermal curves. Diagrams of B2-defects distribution and H-centres were done. The conclusion about thermal formation conditions and possible belonging to the sea stream gravels were done.
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Date submitted2012-07-19
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Date accepted2012-09-14
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Date published2013-01-01
Features of the gold´s composition from the placers of river Maranon (Peru)
- Authors:
- Vega Milton
The paper presents the results of a study of gold from placer deposits of the rivers Marañón, Guayabamba, Chamaya which are located in the north of Peru, Cajamarca Province. There were founded peculiarities of gold, which let make the following conclusion: it was determined that there are a multiple quantity of primary sources of gold placer deposits and it was found the presence of ancient development and extraction of gold, which used the method of amalgamation.
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Date submitted2012-07-26
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Date accepted2012-09-18
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Date published2013-01-01
Isotope ratio 87Sr/86Sr in rocks and ores of the Sakhara and Ufalei supergene nickel deposits in Urals
Isotope ratio 87Sr/86Sr was determined for the first time for the Ufalei and Sakhara supergene nickel deposits. The average obtained 87Sr/86Sr ratio in the Sakhara deposit (0,70838) is higher then in the Ufalei deposit (0,70697). In both deposits 87Sr/86Sr ratio increases from low-altered serpentinite rocks of the lower part of the deposits (0,70583 and 0,70687) to exogenous iron-oxide rocks of the upper part of the deposits (0,70917 and 0,71004).
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Date submitted2012-07-12
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Date accepted2012-09-19
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Date published2013-01-01
Engineering-geological and geoecological aspects of a substantiation of long stability of concrete constructions of Cheboksary hydroelectric рower plant
Features of engineering-geological and hydrological conditions of the basis of concrete constructions are analyzed. Factors of formation of ecological conditions in a bottom zone of a water basin of Cheboksary hydroelectric power plant are analyzed. The maintenance and change of activity and number of microorganisms in water and ground adjournment of a water basin is considered. Results of specialized shooting in dry gallery about a condition of concrete of a building of hydroelectric power plant and an spillway dike in 2010-2011 are stated, the comparative estimation of microbiological activity which promotes development of active biocorrosion of concrete and metals is spent.
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Date submitted2012-07-11
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Date accepted2012-09-12
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Date published2013-01-01
Physical and chemical genesis of swell and osmotic shrinkage of clay soils in construction’s base by results of experimental researches
- Authors:
- R. E. Dashko
- A. V. Shidlovskaya
The effect of physical-chemical and chemical factors on peculiarities of swell and osmotic shrinkage of clay provided to unmembrane’s effect is analyzed. It is demonstrate that the genesis of swell due to water inflow in soil and its outflow is principally different and depends on different correlation of clay pore water concentration (Сп) and solutions filter-passing (Сф). The balance equations for five types of swells are adduced. The experimental researches are allowed to obtain the equation for calculation of solution concentration (boundary of osmotic shrinkage Споу). The exceeding of Споу leads to osmotic shrinkage of clay formation. The conclusion of strength and deformation capacity of clay by swell and shrinkage is gained.
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Date submitted2012-07-20
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Date accepted2012-09-29
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Date published2013-01-01
Late paleozoic alkaline-ultramaphic magmatism in Spitsbergen archipelagoes
Findings in the northwest of Spitsbergen of the hypabyssal intrusions of maphic and ultramaphic compositions with the increased content of alkalis and accessory minerals of kimberlite gave base for the more thorough studies of the region of their propagation, determination of laws governing the arrangement in the zone of the deep submeridional breaking zone Breybogen, study of the physical composition, enriched by xenolites of the mantle level: lherzolites and wehrlites. The Late Paleozoic age, which coincides with the age of kimberlite of Arkhangel'sk region and the mineral-petrographical composition of these species testify about the significant similarity to the pyropic subfacies of kimberlitic magmatism.
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Date submitted2012-07-06
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Date accepted2012-09-19
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Date published2013-01-01
Palinspastic basis of reconstruction devonian paleogeography on the northeast Pechosra basin
- Authors:
- A. L. Zherlygin
Palinspastic reconstruction of the relative position of the important Devonian sections in the north-east of the Pechora basin at the time of their formation was performed by structural methods. It is shown that the displacement of Preduralskii marginal basin’s sections relative to their position in the Devonian increases from west to east, but does not exceed 60 km. The displacement sections of the Polar Urals and Pai-Khoi is estimated to be 80-100 km.
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Date submitted2012-07-30
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Date accepted2012-09-10
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Date published2013-01-01
Problems of water management in Izhora ground water deposit
- Authors:
- V. V. Kurilenko
- S. V, Zhdanov
Modern condition the ground waters of Izora plateau has been estimated in article. It had been identified the rate the growth of anthropogenic load. The aquifer has been characterized on protection degree and karst process. The geological and hydrogeological structure of the studied territory was described. Recommendations about the organization of rational water supply have been made.
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Date submitted2012-07-12
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Date accepted2012-09-19
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Date published2013-01-01
Rare earth elements in platinum bearing vein chromitites of Nizhni Tagil pyroxenite-dunite massif, Central Urals
Chromitites of Nizhni Tagil massif veins in length from a few centimeters to several meters. The contents of rare earth elements in the platinum-veined chromitites characterized by reduced compared with the enclosing dunite values. In quantitative terms, is dominated by light rare earth elements. The positive correlation between the rare-earth elements and platinum group metals in the samples with normal contents. High and extremely high content of PGE in the chromite-platinum ores Nizhni Tagil massif are not accompanied by a significant increase in the concentrations of REE.
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Date submitted2012-07-29
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Date accepted2012-09-07
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Date published2013-01-01
Peat resources of the North-West federal district of the Russia and prospect of their development
This paper provides an overview of the current analysis of peat resources distribution of Northwest Federal district. The analysis of peat industry is resulted. The power effective technology of career extraction of peat raw materials and manufacture of agglomerated peat fuel for needs of the distributed power is offered.
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Date submitted2012-07-17
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Date accepted2012-09-06
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Date published2013-01-01
Engineering-geological conditions of building in zone paleovalleys in Northwest of Saint Petersburg
- Authors:
- T. N. Nikolaeva
- L. N. Norova
The article deals with the peculiarities of engineering geological and hydrogeological conditions in the paleovalley zone in northwestern part of St. Petersburg. The paper focuses on the main aspects of complex development of underground space of heterogeneous zones.
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Date submitted2012-07-27
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Date accepted2012-09-11
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Date published2013-01-01
The role of lithification in the formation оf expelled hydraulic system and hydrogeochemical zoning in platform artesian basins
- Authors:
- V. V. Petrov
The article considers the conditions of lithification in sedimentary basins at different stages of lithogenesis. It is shown that lithification is crucial in the formation of elisional regime in artesian structures. After this process elisional regime of artesian structures descends. Lithification of rocks mostly at the stage of catagenesis and metagenesis generally lead to disturbance of the normal hydrogeochemical zoning in the deep parts of the section of artesian structures creating a hydrogeochemical inversion (desalination) in aquifers.
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Date submitted2012-07-26
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Date accepted2012-09-04
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Date published2013-01-01
The particularities of flow simulation in fractured carbonate reservoirs of Yuribcheno-Tahomskaya oil and gas bearing area
There is full rationale of the phenomenological model of complicated riphean fractured carbonate reservoirs of Yurubcheno-Tokhomskaya oil-gas bearing area, created for simulation of development process for unique oil and gas deposits. The block discrete organization of these complex structure reservoirs are allow them non-additive and non-linear properties under development. Their marked similarity of their structure in a wide range of sizes, as well as the phenomenon of self-organization characteristic of complex nonequilibrium systems. Based on these production rates and their total cumulative production within such hydrocarbon obey a power law distribution, which is characteristic of the behavior of many nonlinear systems and can be described by Pareto. To implement the suggested model has been written special computer program compatible with the hydrodynamic simulation «Tempest MORE» of «Roxar».
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Date submitted2012-07-16
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Date accepted2012-09-17
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Date published2013-01-01
Platinum bearing vein chromites of Svetly Bor pyroxenite-dunite massif, Central Urals
Platinum mineralization in Svetly Bor massif is represented by two promising mineral assemblages: chromite-platinum and platinum-type dunite. Body platinum of chromites lie within the fields of small-and medium-grained dunite central part of the array. Spinel epigenetic vein platinum chromites of Svetly Bor clinopyroxenite-dunite massif have some geochemical features such as high iron content, low chromium and titanium. Changing the chemical composition of the constituent minerals chromites is the result of processes of serpentinization of dunites host and is accompanied by the emergence of new mineral phases. Noble metal mineralization is represented by fine of up to 50 microns, mostly idiomorphic grains isoferroplatinum, tetraferroplatinum, osmiridium.
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Date submitted2012-07-02
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Date accepted2012-09-11
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Date published2013-01-01
An assemblage of ilmenite, pyrophanite and pseudurutile in Severny granite (the Chukchi peninsula)
- Authors:
- E. V. Polyakova
Ilmenite, pyrophanite MnTiO3 and pseudorutile Fe2Ti3O9 are detected by chemistry in Severny granite (Chaunsky District of Chukotka) and described. The Mn content in ilmenite groupe minerals slightly increases with zinnwalditisation high-temperature oxidation of ilmenite and pyrophanite formed pseudorutile. It’s a first occurrence of pyrophanite and endogenous pseudorutile in Severny granite.
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Date submitted2012-07-22
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Date accepted2012-09-04
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Date published2013-01-01
Identification of ore association by variation of geochemical spectrum of ore-forming elements оn the example of Zolotoe deposit (Yenisei ridge)
- Authors:
- A. L. Popov
This paper presents a comparison of the spectrum of different geochemical dispersion patterns of Zolotoe deposit with actual data obtained from detailed mineralogical studies, in order to identify mineral composition of ore by variability of the geochemical spectrum of ore-forming elements. Despite the fairly resistant ore associations, traceable at all stages of the evolution of geochemical patterns (gold-arsenopyrite-pyrite), the processes of oxidation and weathering of ore deposits greatly affect the possibilities of indicator satellite elements of gold.
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Date submitted2012-07-15
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Date accepted2012-09-15
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Date published2013-01-01
Genesis of the distribution of concentration and the mass shares o gold in its ores in different commercial types of gold deposits
- Authors:
- S. V. Sendek
- Ya. Yu. Bushuev
- K. E. Chernyshev
Peculiarities in distribution of concentrations and mass shares of gold in its ores in recoverable gold deposits should be considered as indicators of the genetic nature of gold mineralization. Practical application of the revealed distribution allows the new estimating of the nature of those gold concentrations.
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Date submitted2012-07-07
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Date accepted2012-09-05
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Date published2013-01-01
Devonian corals of the peninsula podgorny from the South island of Novaya Zemlya (Chernaya Bay horizon)
- Authors:
- V. P. Stolbova
Are resulted the description Rugosa from Chernaya Bay horizon of the Peninsula Podgorny of Novaya Zemlya. 13 species (from them one new) and two forms in the open nomenclature, concerning to ten genera and seven families are described.
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Date submitted2012-07-22
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Date accepted2012-09-08
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Date published2013-01-01
Enriched in hydrogen and methan hydrothermal fluids of the Mid-Atlantic Ridge
- Authors:
- S. M. Sudarikov
The results of Russian and international expeditions for investigation of hydrothermal plumes and solutions in the Atlantic tropic zone on deep Mid-Atlantic Ridge hydrothermal fields connected with ultrabasic rocks are considered. Visual observations and sampling using submersibles and tow vehicles show the unsteady character of hydrothermal discharge, phase separation of high-temperature (~350 °C) solutions with high content of hydrogen and methan, iron and manganese, low pH and changeable on time and fields area mineralization. High content of H2 and CH4 could be connected with interaction of ultramafics with seawater on high-temperatures and pressures and serpentinization processes.
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Date submitted2012-07-26
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Date accepted2012-09-26
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Date published2013-01-01
Forming of hydrogeochemical dispersion halos in discharge zones of thermal solutions оn the Mid-Atlantic Ridge
- Authors:
- S. M. Sudarikov
Features of submarine hydrothermal discharge and geochemical anomalies in bottom waters of Mid-Atlantic Ridge are observed. In the typical section of hydrothermal halos two major zones could be distinguished: forming by the rising stream gravitationally non-stable structures and more stable formations on the horizon of lateral flow. Discrete structure of hydrothermal plumes and matter differentiation are discussed. Different types of fluid discharge are revealed on the Logatchev field. As a result three kinds of hydrothermal plumes are forming: of positive, neutral and negative buoyancy.
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Date submitted2012-07-05
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Date accepted2012-09-13
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Date published2013-01-01
Platinum group elements, gold and silver in supergene nickel deposits on dunite-harzburgite bedrock of ophiolitic massifs
Contents of platinum group elements (PGE), gold and silver in oxide-silicate nickel ores of the Buruktal, Ufalei and Elov supergene nickel deposits are determined in relation to their ophiolitic dunite-harzburgite bedrock.
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Date submitted2012-07-05
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Date accepted2012-09-19
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Date published2013-01-01
Fluid characteristic of formation ore-bearing alteration rocks of Elkon gold-uranium ore cluster
The results of thermobarogeochemical studies secondary gas-liquid occlusion in quartz of two types ore-bearing alteration rocks of Elkon gold-uranium ore cluster. The evolution of the fluid in the formation of ore-bearing alkali alteration rocks, and the factor of ore deposition.
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Date submitted2012-07-11
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Date accepted2012-09-24
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Date published2013-01-01
Geological-and-recoverable types of facing stone deposits on Karelian isthmus
- Authors:
- A. Ya. Tutakova
By the priority parameters unders conditions of the up-to-date market – decorative properties and the output of blocks – the geological-recoverable types of the facing stone deposits are selected among known ones on Karelian Isthmus. There are indicated parameters most important for geologic-economical estimation of those deposits, and made for methods of geological-exploration work, with examples of using the facing stones from currently mined deposits.
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Date submitted2012-07-08
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Date accepted2012-09-03
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Date published2013-01-01
Constantly working hydrodinamical model of Yakovlevsky rich iron-ores deposit (Kursk Magnetic Anomaly)
- Authors:
- D. L. Ustyugov
Main goal of researches is bound with an estimation of values of inflows of water in goal Yakovlevsky of an iron-ore deposit using a method of mathematical modeling. Usage of constantly working mathematical models allows reacting operatively to fast varying hydro-geological circumstances and allows to value prognosis inflows of water in mine workings during the further support of mining operations and to solve engineering tasks on optimization of drainage actions.
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Date submitted2012-07-07
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Date accepted2012-09-03
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Date published2013-01-01
About objective and subjective approach to recurrent complexes (for example, brachiopods and bivalves of the ilmen and bureg beds of the middle frasnian, ilmen glint)
- Authors:
- M. G. Tsinkoburova
At the present time researchers are considering recurrence (return of fauna and flora after the return of physical and geographical conditions) one of the drawbacks of biostratigraphic methods. Comparing the features of complex brachiopods and pelecypods of the Ilmen and Bureg beds (middle Frasnian) Ilmen cliff, the author demonstrates the great complexity of the mechanism of recurrence, which depends not only on environmental but also on biological factors. Also a significant role in reducing the reliability of the analysis of systematic diversity of fossiles has biological and paleontological problem species diagnostics (distinction used by different researchers species criteria).
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Date submitted2012-07-10
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Date accepted2012-09-06
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Date published2013-01-01
Injective sand bodies in lower permian deposits of Novaya Zemlya
- Authors:
- R. A. Shchekoldin
Geological setting, composition and morphology of injective sandy bodies in Lower Permian deposits of the south part of Novaya Zemlya are described. Formation of these bodies is interpreted as a result of liquefaction of sandy beds and extrusion of the formed suspension into the host clayey sediments. This process was caused by high sedimentation rates in a prograding submarine fan environment fed with siliciclastics from the rising Urals orogene to the south of Novaya Zemlya.
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Date submitted2012-07-29
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Date accepted2012-09-19
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Date published2013-01-01
Explication of the «boundary» concept in stratigraphy
- Authors:
- V. P. Matveev
Elements, forming the simple conceptions in stratigraphy such as a point, geological stratotype and point, a line, a surface and a boundary were characterized. Mediation of the mentioned conceptions through the ordinary mind is not enough for understanding of the spatiotemporal relations of the geological bodies in stratigraphy. The algorithm of the origination and typification of stratigraphical boundaries is also under consideration.