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GEOLOGY AND MINERALOGY

ISSN 2227-6017 (ONLINE), ISSN 2303-9868 (PRINT), DOI: 10.18454/IRJ.2227-6017
ПИ № ФС 77 - 51217

EXPERIMENTAL STUDY OF CRYSTALLIZATION OF HIGH-CALCIUM CHROMITE GRANATE IN SERPENTIN-CHROMITE-CaO SYSTEM

Posted in 2017, GEOLOGY AND MINERALOGY, Issue №11(65) November 2017 | 0 comments

Garnets containing a high amount of chromium and calcium are some of the rarest types of this mineral, which can be found in peridotite and inclusions in diamonds. The results of experimental modeling of crystallization conditions for high calcium calcined garnets in the serpentine-chromite-Ca-Cr-containing aqueous fluid system at a pressure of 5 GPa and a temperature of 1300°C are presented. The newly formed garnet is characterized by a high content of CaO (up to 26.30% by weight) and Cr2O3 (up to 20.95% by weight) and is similar in chemical composition to the uvarovite-pyrope types that form the part of the relatively rare naturally occurring paragenesis of garnet verlites.

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METAL-SULFIDE-SILICATE MELT AS A POSSIBLE SOLVENT OF NATURAL DIAMONDS

Posted in 2017, GEOLOGY AND MINERALOGY, Issue №11(65) November 2017 | 0 comments

In the present study, the process of etching synthetic diamond crystals at 4 GPa and 1400 °C for a model heterogeneous solvent was first realized in a sulfur-containing iron melt with the addition of kimberlite (Fe – 81 wt%, S – 14%, kimberlite – 5%).

It is established that during the dissolution process, diamond crystals are transformed into the curved individuals of the octahedral habit. It has been established that the role of silicate additives (5 wt%) is in the local screening of the surface of diamonds with the formation of etching bumps.

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ACCURACY ESTIMATION OF THE DYNAMIC ANALYSIS OF OIL AND GAS-BEARING COMPLEX IN SAMARA REGION

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 8(62) August 2017 | 0 comments

The paper is devoted to the evaluation of the accuracy of dynamic analysis under the severe geological conditions in the Samara region and its feasibility on a given territory. Eight seismic survey areas were analyzed using common depth point 3D method (MOGT-3D), on which the dynamic analysis was performed. It was found that the magnitude of the forecast errors for carbonate and terrigenous layers varies: the effective thickness in terrigenous layers is predicted better, than in carbonate formations, and the porosity coefficient is better predicted in carbonate formations. After a general assessment, it was found that the porosity coefficient is predicted slightly better than the effective thickness in the Samara region.

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EXPERIENCE OF DATA PROCESSING OF EXPERIMENTAL FILTRATION WORK IN FISSURED GROUND WITH THE USE OF ANALYTICAL SOLUTIONS AND NUMERICAL MODELING

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 8(62) August 2017 | 0 comments

The construction of an energy facility in the north of Egypt involves the implementation of experimental filtration (EFW) works to determine the water availability of rocks of near-surface aquifers. This is due to the need to build drainage systems for safe construction, as well as further operation of the facility. The results of processing the EFW on the basis of analytical solutions are given; the advantages and disadvantages of the chosen calculation scheme are indicated. The necessity to create numerical models is described. Comparison of interpretation results with analytical solutions and numerical simulation is performed.

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USE OF AIR DRONES IN OIL AND GAS INDUSTRY

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 6(60) June 2017 | 0 comments

This paper describes the main tasks of the oil and gas industry, which can be solved using air drones. Prospective applications of air drones with large weight-lift in solving logistics tasks at the deposits in the near future are considered, which will significantly reduce economic costs and accelerate oil production processes by saving time. In addition, a list of the main domestic companies developing air drones is provided, as well as the average technical characteristics of their products.

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ENGINEERING AND GEOLOGICAL SUBSTANTIATION OF THE CONCEPT AND STRUCTURE OF COMPLEX MONITORING OF SOME ARCHITECTURAL AND HISTORICAL MONUMENTS IN HANOI

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 4(58) April 2017 | 0 comments

The concept and structure of complex engineering and geological monitoring of architectural and historical monuments of Hanoi are proposed in the paper. The specificity of engineering, geological and hydro-geological conditions within the historical center of Hanoi is analyzed. Natural and man-made factors influencing the development of various processes and deformations of architectural and historical monuments are considered in the work. The content of the object engineering and geological monitoring for the Hanoi Cathedral and the Hanoi Flag Tower is proposed.

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INVESTIGATION OF CHEMICAL ELEMENT DISTRIBUTION IN THE NEAR-SURFACE HYDROTHERMAL SYSTEMS WITH THE HELP OF «SELECTOR PC» (IN EXAMPLE OF A GOLOVNINA VOLCANO, KUNASHIR ISLAND)

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 4(58) April 2017 | 0 comments

The chemical composition analysis of gas and thermal fluids of the Golovnin volcano (Kunashir Island, Kuril Islands) are done. The physical and chemical models of «flowing reactor» type for contrast kinds of fluids have been constructed with the help of the SELECTOR Program Complex (PC) at different conditions (P=1 bar and P=10 bar).

Solutions are divided into several groups according to its chemical composition – both to anion and to cation one. The relationship between physical and chemical parameters of springs and components content of ones are detected, the phase relations within systems for contrast groups throughout the numerical experiment are found out, the mineral ratio for solid phase are obtained.

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THE DETERMINATION OF HETEROPHASE REACTIONS ZONES

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 3(57) March 2017 | 0 comments

This work is devoted to the question of heterophase reactions zones identification. The determination of the reactions zones is executed by us by minimum of errors of experimental data approximations by various functions. The four functions are selected as probes: the power function, exponential law and Avraami and Prout-Tompkins equations. Preference is given to the function with less rate constants errors in the case of equality of approximation errors. The reaction of fluorination of anorthosites by ammonia hydrodifluoride is given as an example. The result of reactions zones determination is agreed with result received by the traditional criterion (by value of activation energy).

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PETROTERMALNOY IMPORTANCE OF ENERGY IN THE MODERN WORLD

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 2(56) February 2017 | 0 comments

In this paper, we consider the use petrotermal energy as a source of inexhaustible energy source of the Earth’s interior. Energy – is the most important sphere of human society today, it affects not only the factors of production, but also the material support of our society. Energy resource provides all the processes in production, social activities and information area. It was found that the use of coolants petrotermal are much more profitable and efficient than thermal and nuclear power plants.

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ENGINEERING GEOLOGICAL FEATURES OF QUATERNARY SEDIMENTS AND TYPIFICATION OF SOILS OF HANOI CITY

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 1(55) January 2017 | 0 comments

The article deals with engineering geological features of Quaternary sediments in the profile of underground space of Hanoi. Classification of soils by their compressibility and bearing capacity for the purposes of typical construction is given. Physical and mechanical characteristics of Quaternary soils in the historical centre of the city are analysed. Significant influence of organic materials on physical and mechanical characteristics of soil in Hanoi area is noted. Paper describes organics distribution in depth as well as changes of some physical and mechanical properties of soils in the profile of Hanoi depending on the content of organic matter.

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PRACTICAL CONFIRMATION DIVERSITY LAYERING SEDIMENTARY ROCKS CHERNOGOMORYA LATE PERIOD OF ELECTRON MICROSCOPY

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 1(55) January 2017 | 0 comments

The formation of sedimentary rock – a process quite complex, subject to the simultaneous action of a number of factors that leads to the identification of clear laws governing the formation of the final structure and properties. Sedimentary rocks of the Black Sea is a truly unique facility for geological study, it became apparent only with the advent of electronic microscopy for the study of thin sections at high resolution. This article provides practical results of the study shlivov sedimentary accumulations of Black sea.

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HYDROGEOLOGICAL CONDITIONS OF THE APTIAN-ALBIAN-CENOMANIAN COMPLEX KAMENNYJ OIL FIELD

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 1(55) January 2017 | 0 comments

Hydrogeodynamic and hydrogeochemical features of the Aptian-Albian-Cenomanian hydrogeological complex within Kamennyj oil fields are considered by the author. The field is located in the Krasnoleninsk petroliferous area of Western Siberia. Hydrogeological conditions of the Aptian-Albian-Cenomanian complex enough homogeneous despite the existence of elements of geodynamic water pressure system in the lower sedimentary cover. The basic process that has defined modern hydrogeological conditions in the study area have elision water exchange. Through this process in the Aptian-Albian-Cenomanian complex present excess hydrostatic reservoir pressure and sodium bicarbonate-type water by V.A. Sulin.

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HYDROGEOCHEMICAL CONDITIONS OF RYUPEL’SKO-HATTSKIJ AQUIFER IN SOUTHWESTERN TYUMEN REGION

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 1(55) January 2017 | 0 comments

Hydrogeochemical conditions Ryupel’sko-Hattskij aquifer within the Youth field fresh groundwater are considered in the article. In general hydrogeochemical conditions are sufficiently homogeneous. Limit values exceed the values of organoleptic characteristics. Corresponding preparation is necessary to improve the quality of groundwater used for drinking water supply.

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MACROCOMPONENTAL COMPOSITION OF GROUNDWATER LOWER-MIDDLE JURASSIC HYDROGEOLOGICAL COMPLEX OF TALIN OIL FIELD

Posted in 2017, GEOLOGY AND MINERALOGY, Issue № 1(55) January 2017 | 0 comments

Hydrogeochemical condition of Lower-Middle Jurassic hydrogeological complex within Talin oil fields considered by the author. The field is located in the area of oil and gas Krasnoleninsk Western Siberia. Elysion water exchange process significantly influenced the distribution of macro-components in ground waters. Considered in the article values of sodium chloride and boron-bromine genetic coefficients indicate significant metamorphism composition of water.

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ENGINEERING GEOLOGICAL AND ENVIRONMENTAL ASPECTS OF MORAINE SOILS TRANSFORMATION IN UNDERGROUND SPACE OF ST. PETERSBURG FOR EVALUATION OF THEIR BEARING CAPACITY

Posted in 2016, GEOLOGY AND MINERALOGY, Issue December 2016 | 0 comments

In the article the specifics of moraine deposits transformation in profile of St. Petersburg underground space are considered. It is established that in polluted and/or boggy areas with anaerobic conditions moraines are characterized by absence of cement bonds and by plastic behavior, as evidenced by the results of moraines triaxial testing under laboratory conditions. Examples of multistory buildings design and construction on the moraine soils, characterized by microbial lesion and high level of contamination, including buildings transition to an emergency and pre-emergency state are presented.

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TYPOMORPHIC FEATURES OF GARNET AND ILMENITE FROM MORKOKA’S KIMBERLITE PIPE (YAKUTIA)

Posted in 2016, GEOLOGY AND MINERALOGY, Issue December 2016 | 0 comments

The kimberlite indicator minerals from the low productivity Morkoka pipe, which is located in Daldyno-Alakit diamondiferous region of Yakutia, were studied. Garnets are presented as pyrope from lherzolitic and dunite-harzburgite parageneses. The most pyrope samples contain lowered range Cr2O4, enhanced range TiO2 and CaO. Ilmenite is characterized by a moderate amount of magnesium and high titanium content. The pyrope and ilmenite grains have relicts of magmatic surface with traces of dissolution and kelyphite rims. Despite the low productivity of pipe Morkoka, some signs of indicator minerals indicate that they belong to high diamond associations, which increases the prospects of kimberlite field Morkoka.

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METHODS DETECTION AND DIAGNOSIS OF COSMIC PARTICLES IN SALTS VERKHNEKAMSKOYE DEPOSIT

Posted in 2016, GEOLOGY AND MINERALOGY, Issue December 2016 | 0 comments

We discuss methods of detection and diagnosis of the origin of cosmic particles in the salt rocks on the example of salt of Verhnekamskoye deposit. We give the traditional methods of detection and identification of cosmic particles in a variety of sedimentary rock. The role of different methods for detection and identification of space particles are empirically found regularities of their classification. Substantiates the capillary method for the detection and diagnosis of extraterrestrial particles in the water-insoluble residue (NO) salt rocks. Examined and discussed the techniques and methods of analysis in the combined method is applicable for the extraction of minerals, trace and diagnosis of ground material of rocks and ores and products.

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IMPLEMENTATION OF POSSIBILITY MODERN RESEARCH METHODS IN GEOLOGY TO STUDY THE LATE QUATERNARY SEDIMENTATION ON THE PLATFORM AND FOLDED THE EDGE OF THE BLACK SEA

Posted in 2016, GEOLOGY AND MINERALOGY, Issue October 2016 | 0 comments

The practice of modern geological science are well represented various methods of investigation and interpretation of geological samples of various origins. In the case of objects requiring very thorough study in view of its specific character as the Black Sea, like technical support becomes indispensable. In this article the author gives a description of the unique features of the Black Sea Geology disclosed using modern geological tools. The results allow to form a very representative picture of the Black Sea’s geological history.

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STUDY ON THE EFFECT OF BENTONITES COMPOSITION ON THEIR ABILITY TO FIX CESIUM AND STRONTIUM

Posted in 2016, GEOLOGY AND MINERALOGY, Issue August 2016 | 0 comments

Five bentonites samples of the different composition were saturated with Cs and Sr under the static conditions. The desorption were examined under the filtration of distilled water through the saturated bentonite samples. Most of the studed bentonites effectively retarded both Cs and Sr. Cs desorption values were 12-20%, and Sr desorption – 2,5 – 23%. Correlation of the chemical composition parameters of bentonites and their ability to fix cesium and strontium.

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ZONES OF EXCESSIVE FISSURING AND FLUID PERMEABILITY AS FACTOR OF DRILLING PROBLEMS ON THE ASTRAKHAN GAS CONDENSATE FIELD

Posted in 2016, GEOLOGY AND MINERALOGY, Issue July 2016 | 0 comments

This article analyzes the causes of complications arising from the drilling-in of supra-salt, salt and sub-salt parts of the section of the Astrakhan gas condensate field. It has been established that the complications arise due to a number of factors: natural (salt tectogenesis, the presence of viscous plastic of salts and clays, fissility), and manmade (the speed of RIH/POOH operations, the discharges capacity, high drilling mud density and cementing fluids, the induced pressure). Five main intervals of the complications in the section of the field are identified and the causes of their formation are done. The article also provides recommendations for the prevention of the possible complications.

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