mineral deposit
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Author(s):  
I. Pustovoitova

Іn the article the decision of problem of counteraction to the illegal booty of jewels of оrganogenic formation is presented by his legalization and analysis rows of normative documents that set the special order of the use of bowels of the earth for this aim. It is indicated that among crimes that trench upon the natural resources of country, most latent, and to the volume, the least investigational is exactly this type of criminal offence. The concept of amber is given in a publication, and it is indicated in what the duties of users of bowels of the earth, and also the certain basic requirements during working mine of minerals and the basic requirements, consist in industry of guard of bowels of the earth Procedure is exposed and in detail taking title of sing the bowels of the earth is described for mining, in particular, she is begun with development in accordance with the current landed legislation of project organization of the use of land in relation to talk in of lot land for mining, realization of examination and estimation of the found out supplies of minerals all right established by the State Commission of Ukraine for Mineral Resources, obtaining a single subsoil use permit after coordination with the competent authorities, approval of the project for the development of a mineral deposit, obtaining land for subsoil use and ends at the time of state registration of property rights to the land. Socio-economic and legal factors of the problem of illegal amber mining are determined. The attempts of the legislator to regulate the issue of amber mining from its illegal fishing by developing numerous bills, issuing decrees and orders have been studied. Their shortcomings and positive directions are revealed. The socioeconomic and legal preconditions for illegal extraction of precious stones of organogenic formation are indicated.


Author(s):  
Aleksander Lipiński

Article 26 sets out detailed requirements of the license applications for mining of minerals from deposits. These include, in particular, information about the mineral deposit, way and size of the mining, t he r ights to use the land a nd the right to the geological information. A n appendix to such application is the “deposit development plan”, determining the way of rational use of the deposit and environmental protection. Similar requirements apply to applications for the underground non-reservoir storage of substances and underground waste depositing (Art. 27).


2021 ◽  
Author(s):  
Xiu-Juan Bai ◽  
Man Liu ◽  
Rong-Guo Hu ◽  
Yuan Fang ◽  
Xiao Liu ◽  
...  

Abstract Mineralization ages of many mineral deposit types (such as orogenic Au, stratabound Cu, and Mississippi Valley-type Pb-Zn deposits) are still difficult to date by the traditional isotopic chronometry because of the lack of suitable minerals. We have made efforts to establish a widely suitable dating technique to determine ore formation ages using a high-precision 40Ar/39Ar method on ubiquitously present fluid inclusions in quartz, sphalerite, and other nonpotassium minerals from hydrothermal deposits. The Xitian W-Sn polymetallic deposit in central South China contains several minerals suitable for isotopic dating for interchronometer comparison. 40Ar/39Ar laser step heating of 16 micas from ore veins, greisen, and metallogenic granites yields flat age spectra and thus well-defined ore formation ages ranging from 152.4 ± 1.5 (2σ) to 148.1 ± 1.4 Ma with an average of 150.2 ± 0.6 Ma. 40Ar/39Ar progressive crushing of nine quartz samples produces well-defined isochron lines for their primary fluid inclusions corresponding to isochron ages of 153.7–149.9 Ma with an average of 151.6 ± 0.6 Ma. Cassiterites from three hand specimens have weighted mean 206Pb/238U ages of 151.5 ± 1.7 (2σ), 149.7 ± 2.1, and 151.7 ± 2.1 Ma. All these new geochronological dates and previous molybdenite Re-Os ages yield well-constrained mineralization ages of 153–148 Ma for the Xitian W-Sn polymetallic deposit, which also confirms conclusively that the quartz 40Ar/39Ar progressive crushing technique is a feasible, valid dating technique. Furthermore, significant age information on the secondary fluid inclusions is potentially obtained simultaneously by this technique. We expect that this novel dating technique will be widely applied to determine the geologic fluids trapped in minerals during hydrothermal mineralization, hydrocarbon accumulation, metamorphism, tectonic activities, and other geologic processes.


2021 ◽  
Vol 10 (3) ◽  
pp. 26-33
Author(s):  
L. A. Bogdanov ◽  
N. Yu. Osyaev ◽  
Yu. D. Bogdanova ◽  
R. A. Mukhamadiyarov ◽  
A. R. Shabaev ◽  
...  

Aim. To analyze the topographic patterns of valvular and atherosclerotic calcification growth.Methods.           Dysfunctional aortic valves (n = 18) and atherosclerotic plaques (n = 20) were fixed in formalin, postfixed in 1% osmium tetroxide, consecutively stained by 2% osmium tetroxide and 2% uranyl acetate, and embedded into epoxy resin (Epon) with the further grinding and polishing ofthe samples. Upon the counterstaining by lead citrate and sputter coating with carbon, samples were visualized by backscattered scanning electron microscopy. Elemental analysis was conducted via energy-dispersive X-ray spectroscopy. Measurement of Ca/P ratio within the mineral deposits was carried out employing a pool table principle (i.e., in the center of the deposit, in the near and far circumferences (clockwise), and in control regions around the mineral deposit). Topographic patterns of calcifications were modeled using the correlation analysis.             Results. Significant correlation was revealed between the Ca/P ratio in the deposit center and in the near and far circumferences of deposit in both in valvular (r = 0,35-0,78 - near circumference; r = 0,63-0,69 - far circumference) and atherosclerotic mineral deposits (r = 0,37-0,56 - near circumference; r = 0,48-0,63 - far circumference), suggesting the hierarchical growth of cardiovascular calcification around the initial nucleation sites.Conclusion.       Valvular and atherosclerotic calcifications development is concentric.


2021 ◽  
pp. 267-284
Author(s):  
Konstantin V. LOBANOV ◽  
◽  
Mikhail V. CHICHEROV ◽  
Nikolay V. SHAROV ◽  
◽  
...  

The Kola Superdeep Well (SG-3) is an outstanding achievement of Soviet science and technology, drilled in Precambrian crystalline rocks and reached a depth of 12262 m. It was one of a series of super deep wells planned within the framework of the program “Earth's Interior Exploration and Superdeep Drilling”. In order to achieve record depths, unique domestic drilling equipment and materials capable of working at high temperatures and pressures were created. A fundamentally new technology for drilling wells using hydraulic downhole motors was developed. Despite difficult drilling conditions and repeated acci-dents, SG-3 has fulfilled almost all the tasks assigned to it. The well was penetrated with full core sampling, which was subjected to comprehensive study. This made it possible to study the deep structure of the Earth's crust and to revise the interpretation of depth seismic data. It was found that changes in the physical properties of rocks at great depths had been erroneously interpreted as a change in their composition. It made it possible to assess the prospects of deep horizons of the Pechenga structure for copper-nickel mineralisation by uncovering a previously unknown body of ore-bearing hyperbasites. New information was obtained on the temperature gradient, which turned out to be significantly higher than expected, as well as on the vertical metamorphic zoning along the borehole section. The composition and physical properties of rocks in deep horizons were investigated. Tectonic fault zones and six types of ore mineralisation were identified in the borehole section. New data on ore formation processes at great depths have been obtained, which is an important contribution to the theory of mineral deposit formation


2021 ◽  
Vol 75 (3) ◽  
pp. 15-28
Author(s):  
L.N. Temirbekova ◽  
◽  
N.M. Temirbekov ◽  
V.L. Los ◽  
Ye.I. Imangaliyev ◽  
...  

Currently, due to the rapid development of computer technology in geology, methods and approaches of scientific visualization based on additional data analysis are being intensively developed. The general concept is that the main data field on the daily surface and additional conditions are set at the input. Further, methods of mathematical geophysics are used for their analysis and processing, as a result of which new information is obtained for deep surveys. Then, in the information system, visualization tools are applied to the new information received and to the main data field. Thus, the information system is based on the synthesis of visual representation methods and methods of mathematical geophysics, computational mathematics from different branches of knowledge. This paper presents a description of the software module of the geoinformation system, based on the methods of intelligent detection of anomalies of hidden deposits, for deep predictive and search modeling of deposits. The functioning of the software module is based on the application of the theory of inverse problems of mathematical geophysics with elements of artificial intelligence using geological data on the earth's surface, geophysical measurements and geochemical analyses as input data. The program module for the inverse problem of the continuation of potential fields in the direction of disturbing masses is used for real data of a specific mineral deposit.


2021 ◽  
Author(s):  
Clinton Ebimobowei Ebikemefa ◽  
Stephen J. Mallo ◽  
Caleb K. Aluwong ◽  
Martins Basu

Abstract Background: Artisanal Mining of Cassiterite at Bisichi (Kara II) and Kuru-Jentar is a very tedious activity that is carried out by artisanal miners. It involves the use of primitive tools like digger, spade, shovel and to mention a few. Most of the artisanal mining activity in the study area is done with no prior knowledge about the geochemical constituent of the mineral deposit in the area but in order to solve the above stated problem, a geochemical analysis was conducted on the obtained samples of cassiterite from the study area and a geologic map of the mining pit was digitized using Ilwis 3.1 academic and Surfer 12. Result: A random sampling method was used to obtain ten (10) samples of cassiterite from the various visited pit at the study area with each weighing 10g. A laboratory analysis was also conducted using X-ray Fluorescence (XRF) analysis which shows that samples from Pit 1 to Pit 5 in the mine site at Kuru-Jentar has 44.45% - 44.9% of Tin (Sn) and 7.86% - 9.00% of Iron (II) oxide (Fe2O3) while samples from Pit 5 to Pit 10 in the mine site at Bisichi (Kara II) has 28.2% - 32.2 % of Tin (Sn) and 15.57% - 16.67% of Iron II oxide (Fe2O3). Conclusively, an understanding of the geochemical constituent of a mineral deposit within a given study area would help increase the knowledge of miners and also attract interested investors.


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