scholarly journals GEOCHRONOLOGY OF LITHIUM-BEARING GRANITOIDS OF INGUL MEGABLOCK (UKRAINIAN SHIELD)

2018 ◽  
pp. 23-28 ◽  
Author(s):  
L. Stepanyuk ◽  
O. Hrinchenko ◽  
B. Slobodian ◽  
V. Semka ◽  
S. Kurylo ◽  
...  
Keyword(s):  
Economic Development ◽  
Rare Metal ◽  
Ukrainian Shield ◽  
Rare Metals ◽  
Isotopic Method ◽  
Metallic Mineral ◽  
Level Of Economic Development ◽  
Modern Level ◽  
Marine Basins ◽  
Rare Metal Pegmatite

Rare-metal elements are strategic metals which, in general, are extremely important for economic development or maintenance of defence capability of any country at the modern level. The list of needs for these strategic metals ranges depending on the level of economic development of certain country, but in general it includes such elements as Li, Ta, Nb, Be, Sb, W, REE and others. The majority of these elements has the lithophilous nature and, therefore, is characterized by close genetic relations with granites and pegmatites associated with them. In the world, industrial production of lithium is shared between deposits to lithium-bearing brine of saline depositions of marine basins (Argentina, Chile), some granites (China) and rare-metal pegmatites (Australia, China, Zimmbabve). In pegmatites lithium mineralization is represented mainly by spodumene (LiAlSi2O6), But other lithium-containing metallic minerals can also play an important role in production of this metal – petalite (LiAlSi4O10), minerals of lepidolite (Sa [Li,Al]3[Si,Al]4O10[F,OH]2) and amblygonite-montebrasite (LiAlPO4 [F,OH]) series. Rare-metal pegmatite of Ingul megablock of Ukrainian Shield can be treated as unique (insufficiently studied in world practice) pegmatitic formations in which the main metallic mineral is represented by petalite. In metallogenic interpretations two ore districts can be distinguished within the megablok, that are specialized on rare metals (Li, Rb, Cs, Be, Ta, Nb, Sn) – Polohivka and Stankuvatka. Deposits and numerous ore manifestations of rare metals formed in rather similar geological and tectonic conditions and have many common features – both country rocks composition and mineralogic composition of ores. Within Ingul megablock (Shpola-Tashlyk rare-metal district) a number of lithium rare-metal deposits associated with pegmatites is discovered. In order to determine the age of lithium mineralization in granites of Lypniazhka, Taburyshche massifs and vein bodies of pegmatitic and aplito-pegmatitic granites, which are selected from different localities of this megablock, are dated by U-Pd isotopic method by monazites. It is established that emplacement of vein granites of Ingul megablock occurred within rather narrow age interval – 2040-2020 Ma and it is not significantly separated in time from formation of most granitoids they are spatially associated with. This fact, together with geological evidences, gives grounds to make the assumption that rare-metal lithium pegmatite are formed in the same age interval.

scholarly journals Rare-Metal Pegmatite Deposits of the Kalba Region, Eastern Kazakhstan: Age, Composition and Petrogenetic Implications

Minerals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1017
Author(s):  
Sergey V. Khromykh ◽  
Tatiana A. Oitseva ◽  
Pavel D. Kotler ◽  
Boris A. D’yachkov ◽  
Sergey Z. Smirnov ◽  
...  
Keyword(s):  
Phase 1 ◽  
Rare Metal ◽  
Rare Metals ◽  
Geochronological Data ◽  
Age Composition ◽  
Deep Faults ◽  
Mineral Assemblages ◽  
Rare Metal Pegmatite ◽  
Ore District ◽  
Eastern Kazakhstan

The paper presents new geological, mineralogical, and isotope geochronological data for rare-metal pegmatites in the Kalba granitic batholith (Eastern Kazakhstan). Mineralization is especially abundant in the Central-Kalba ore district, where pegmatite bodies occur at the top of large granite plutons and at intersections of deep faults. The pegmatites contain several successive mineral assemblages from barren quartz-microcline and quartz-microcline-albite to Li-Cs-Ta-Nb-Be-Sn-bearing cleavelandite-lepidolite-spodumene. Ar-Ar muscovite and lepidolite ages bracket the metallogenic event between 291 and 286 Ma. The pegmatite mineral deposits formed synchronously with the emplacement of the phase 1 Kalba granites during the evolution of hydrous silicate rare-metal magmas that are produced by the differentiation of granite magma at large sources with possible inputs of F and rare metals with fluids.

scholarly journals FEATURES OF BERILLIUM AND RARE METAL MINERALIZATION IN SYENITE OF THE PERGA DEPOSIT (UKRAINIAN SHIELD)

2020 ◽  
pp. 92-97
Author(s):  
О. Dubyna ◽  
S. Kryvdik ◽  
V. Belskyy ◽  
О. Vyshnevskyi
Keyword(s):  
Rare Earth ◽  
Fluid Phase ◽  
Rare Metal ◽  
Geochemical Characteristics ◽  
Ukrainian Shield ◽  
Alkaline Solutions ◽  
Published Data ◽  
Rare Metals ◽  
Rare Metal Mineralization ◽  
Mn Content

The results of the ore and accessory minerals study in the syenite of the Perga beryllium deposit are discussed. Phenakite and genthelvite are found among Be-bearing minerals. Genthelvite of this syenite, being compared to early published data on genthelvite of the Perga deposit, is distinguished by the highest ZnO content which is close to the theoretical maximum) due to the alkaline nature of studied rock ((Na + K)/Al = 1.09). Genthelvite occurs as later mineral to phenakite or is formed by phenakite replacement at rising the alkalinity as a result of melt differentiation. Columbite with high-Mn content, Y-silicate (keiviite-(Y)?), rare-earth fluorocarbonate (bastnesite) are also found among other minerals of rare metals. The presence of fluorite and rare-earth fluorocarbonate in association with genthelvite or phenakite may indicate that Be and REE were transported in ore-bearing fluids as complex fluorine-carbonate compounds. Considering the geochemical characteristics of rocks (meta-aluminous, subalkaline and alkaline series, deep negative Euanomalies, low Sr, Ba, elevated – HFS elements) from the Sushcano-Perga region, enrichment of these rocks with rare metals and Be are related to intensive feldspar fractionation of the primary melts and due to alkaline oversaturation, volatile and rare metals (Be, Li, REE, Y, Nb, Ta) enrichment in the residual fractions of granitic or syenitic compositions. Postmagmatic alkaline solutions enriched in F and CO32- promote of Be concentration in fluid phase with its following migration and crystallization as genthelvite.

scholarly journals Mineralogical Tracers of Gold and Rare-Metal Mineralization in Eastern Kazakhstan

Minerals ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 253
Author(s):  
Boris A. D’yachkov ◽  
Ainel Y. Bissatova ◽  
Marina A. Mizernaya ◽  
Sergey V. Khromykh ◽  
Tatiana A. Oitseva ◽  
...  
Keyword(s):  
Mineral Exploration ◽  
Mineral Resources ◽  
Metallurgical Industry ◽  
Rare Metal ◽  
Rare Metals ◽  
Mineral Assemblages ◽  
Rare Metal Mineralization ◽  
Rare Metal Pegmatite ◽  
Eastern Kazakhstan ◽  
Gold Bearing

Replenishment of mineral resources, especially gold and rare metals, is critical for progress in the mining and metallurgical industry of Eastern Kazakhstan. To substantiate the scientific background for mineral exploration, we study microinclusions in minerals from gold and rare-metal fields, as well as trace-element patterns in ores and their hosts that may mark gold and rare-metal mineralization. The revealed compositions of gold-bearing sulfide ores and a number of typical minerals (magnetite, goethite, arsenopyrite, antimonite, gold and silver) and elements (Fe, Mn, Cu, Pb, Zn, As, and Sb) can serve as exploration guides. The analyzed samples contain rare micrometer lead (alamosite, kentrolite, melanotekite, cotunnite) and nickel (bunsenite, trevorite, gersdorffite) phases and accessory cassiterite, wolframite, scheelite, and microlite. The ores bear native gold (with Ag and Pt impurities) amenable to concentration by gravity and flotation methods. Multistage rare-metal pegmatite mineralization can be predicted from the presence of mineral assemblages including cleavelandite, muscovite, lepidolite, spodumene, pollucite, tantalite, microlite, etc. and such elements as Ta, Nb, Be, Li, Cs, and Sn. Pegmatite veins bear diverse Ta minerals (columbite, tantalite-columbite, manganotantalite, ixiolite, and microlite) that accumulated rare metals late during the evolution of the pegmatite magmatic system. The discovered mineralogical and geochemical criteria are useful for exploration purposes.

Spatial Development of Innovation Systems in Russia

2014 ◽  
Vol 9 (4) ◽  
pp. 289-304 ◽  
Author(s):  
Lidija Sergevna Arkhipova
Keyword(s):  
Economic Development ◽  
Russian Federation ◽  
Chemical Industry ◽  
Innovation System ◽  
Machine Building ◽  
Competitive Advantages ◽  
Regional Aspect ◽  
Level Of Economic Development ◽  
The Russian Federation ◽  
Effective Development

While the development of the country's national innovation system as a whole is very important and should be prioritized, its regional aspect is even more important. The specifics of the Russian Federation's transition to an innovation-based economy is in that that, at the present time, prioritized is the need to ensure the effective development of those economy sectors that underlie the country's specialization and may provide regional and national competitive advantages. To such sectors belong the chemical industry, machine-building and power energetics. We would like to note that initial innovation awareness indicators in the regions are comparable and do not differ greatly but the growth of activity can be observed only in some of the regions. The problem of large differentiation among the constituent entities of the Russian Federation by their level of economic development remains important and has to be dealt with. 

CONTROLLING TOOLS IN MODELING THE EAEU TAX LOAD

2020 ◽  
Vol 2 (3) ◽  
pp. 145-152
Author(s):  
V. D. KOVALEVA ◽  
◽  
Z. R. KOCHKAROVA ◽  
L. V. IONIDI ◽  
◽  
...  
Keyword(s):  
Economic Development ◽  
Optimization Technique ◽  
Tax Burden ◽  
Urgent Problem ◽  
Level Of Economic Development ◽  
Soviet Space ◽  
Post Soviet Space

The article is devoted to the urgent problem of taxation of the EAEU countries, the methods of tax burden optimization are disclosed, the feasibility of using the tax burden indicator as a criterion for the level of economic development of a business entity is substantiated, the tax burden of the countries of the Eurasian and post-Soviet space is analyzed, a tax burden optimization technique based on controlling tools is proposed.

Growth and Social Capital: Empirical Analysis of the Relationship

2019 ◽  
pp. 128-134
Author(s):  
Ksenia V. Bagmet
Keyword(s):  
Economic Growth ◽  
Social Capital ◽  
Economic Development ◽  
Social Development ◽  
Empirical Analysis ◽  
Panel Data Analysis ◽  
Well Being ◽  
Developed Countries ◽  
International Institute ◽  
Level Of Economic Development

The article provides an empirical test of the hypothesis of the influence of the level of economic development of the country on the level of development of its social capital based on panel data analysis. In this study, the Indices of Social Development elaborated by the International Institute of Social Studies under World Bank support are used as an indicators of social capital development as they best meet the requirements for complexity (include six integrated indicators of Civic Activism, Clubs and Associations, Intergroup Cohesion, Interpersonal Safety and Trust, Gender Equality, Inclusion of Minorities), comprehensiveness of measurement, sustainability. In order to provide an empirical analysis, we built a panel that includes data for 20 countries divided into four groups according to the level of economic development. The first G7 countries (France, Germany, Italy, United Kingdom); the second group is the economically developed countries, EU members and Turkey, the third group is the new EU member states (Estonia, Latvia, Lithuania, Romania); to the fourth group – post-Soviet republics (Armenia, Georgia, Russian Federation, Ukraine). The analysis shows that the parameters of economic development of countries cannot be completely excluded from the determinants of social capital. Indicators show that the slowdown in economic growth leads to greater cohesion among people in communities, social control over the efficiency of distribution and use of funds, and enforcement of property rights. The level of tolerance to racial diversity and the likelihood of negative externalities will depend on the change in the rate of economic growth. Also, increasing the well-being of people will have a positive impact on the level of citizens’ personal safety, reducing the level of crime, increasing trust. Key words: social capital, economic growth, determinant, indice of social development.

Political and Economic Effects on Greenhouse Gas Emissions – a Quantitative Study

2014 ◽  
Vol 10 (2) ◽  
pp. 313-341
Author(s):  
Ole Martin Lægreid
Keyword(s):  
Economic Development ◽  
Linear Relationship ◽  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Separation Of Powers ◽  
Economic Effects ◽  
Gas Emissions ◽  
Middle Income ◽  
Level Of Economic Development ◽  
High Level

AbstractThis study examines whether there is a curve linear relationship between economic development and greenhouse gas emissions, where poor and rich countries have low emissions while middle-income countries have high emissions. This is a controversial argument that suggests that persistent economic growth is the best means for achieving considerable emission reductions. The study contributes with new knowledge about the causes of variations in greenhouse gas emissions, by analyzing data for greenhouse gas emissions and testing economic explanations in relation to a broad array of political explanations. As the study demonstrates, there is a curve linear relationship between the level of economic development and greenhouse gas emissions, but the turning point – where a higher level of economic development starts to produce lower rather than higher emission levels – is far higher than previously thought. Among the study’s sample of countries, only the Scandinavian countries and Switzerland have experienced a sufficiently high level of economic development in order for increased wealth to result in lower emissions. Among the political impacts on greenhouse gas emissions, the study indicates that countries with consensual political systems produce lower emission levels than countries where the separation of powers is more centralized. A more robust “green” civil society leads to lower emissions in countries where the democratic system is functioning well, and ambitious targets regarding reduction of emissions in the Kyoto Protocol also seems to lower emissions.

Evidence of Surplus Production in the Cherokee Nation Prior to Removal

1995 ◽  
Vol 55 (1) ◽  
pp. 120-138 ◽  
Author(s):  
David M. Wishart
Keyword(s):  
Economic Development ◽  
Cherokee Nation ◽  
Surplus Production ◽  
Economic Progress ◽  
Level Of Economic Development ◽  
White Farmers ◽  
Statistical Record

Debate over the level of economic development for the Eastern Cherokees was heated during the 1830s. Removal opponents argued that the Cherokees had adopted white agricultural methods, whereas advocates of removal maintained that little evidence of progress existed. Removal advocates believed that Cherokee economic progress required that they be removed from contact with whites. This article examines the statistical record to show that a majority of Cherokee households produced surplus food before removal. The large number of Cherokee households producing surpluses before removal suggests the existence of significant rents to be transmitted to white farmers via the removal policy.

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