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Ore Mineralization of Active Paleomargins of Continents (on the Example of Alpine Metallic Deposits of Caucasus and Pontides)
Sergo Kekelia,
Nona Gagnidze,
Ira Mshvenieradze,
Giorgi Kharazishvili
Issue:
Volume 10, Issue 1, March 2021
Pages:
1-13
Received:
2 December 2020
Accepted:
2 February 2021
Published:
23 February 2021
Abstract: Metallogenic features of Pontides – Lesser Caucasus microplates (part of active paleomargin of Eurasian microplate are determined by copper, copper-molibdenium porphyry, iron-scarn, volcanic nonferrous, precious metals, auriferous and manganese ore deposits. Their orebearing fluid systems occurred consistently on various stages of development of the region and were correlated with geological processes on the border of convergental and divergental interaction of mic¬roplates. The above mentioned types of ore deposits display clear areal and temporary bonds with certain composites of lithogeodynamic complexes (which are presented in mountain folding systems of relics of ancient geomorphological structures) - geological formations. Different geologic-genetical models are suggested for each type of deposits, characterizing possible sources of ore substance, causes of rise and functions of fluid systems, in addition to ore formation environment. It may be said that different genetic groups of deposits are regularly associated with certain litho-geodynamic complexes. The complexes of the paleomarginal sea hollows of the divergent type are specialized in copper and pyrite-polimetallic hydrothermal-sedimentary mineralization; island arc systems of different age – in copper and copper-zinc hydrothermal-sedimentary and epigenetic mineralization; their uplifted blocks – in gold, copper-porphyry and skarn-iron-ore mineralization. Within the area of volcanic-sedimentary copper-zinc deposits in intra-arc sea hollows (Pontides) manganese accumulations are sometimes encountered.
Abstract: Metallogenic features of Pontides – Lesser Caucasus microplates (part of active paleomargin of Eurasian microplate are determined by copper, copper-molibdenium porphyry, iron-scarn, volcanic nonferrous, precious metals, auriferous and manganese ore deposits. Their orebearing fluid systems occurred consistently on various stages of development of th...
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Farmers Adoption of Vetiver Grass Hedgerows for Soil and Water Conservation, Haru District, Western Ethiopia
Issue:
Volume 10, Issue 1, March 2021
Pages:
14-27
Received:
24 December 2020
Accepted:
7 January 2021
Published:
23 February 2021
Abstract: Soil erosion is one of the most series problems for the agricultural sector in Ethiopia. There is a need to understand the effective soil and water conservation practices. Therefore, feasible, easy, socially acceptable and environmentally friendly soil conservation practice is essential in the study area due to existence of severe soil erosion. The objective of the study was to investigate the farmers’ adoption of Vetiver grass hedgerows for soil and water conservation in Haru district, Western Ethiopia. The data were collected through questionnaire survey; FGD (Focus Group Discussion), KII (Key Informant Interview) and observation. Quantitative and qualitative sources of data were used for the study. Both primary and secondary types of data were also employed in this study. The quantitative data were analyzed with the help of SPSS version 20 and analyzed using descriptive statistics and Chi-square test. Whereas, the qualitative data were analyzed by descriptive narrations. Majority of respondents reported that soil erosion exists on their farmland at different degrees which hinders crop productivity. The study confirms that 71.3% of respondents practice Vetiver grass for soil and water conservation, whereas, 28.7% of respondents do not practice Vetiver grass for soil and water conservation. There is statistically significant association between knowledge of households and the use of Vetiver grass, which influences their willingness to practice. The study indicated that sex, age, educational status and family size of sample respondents have showed statistically significant association with farmers’ practice of Vetiver grass for soil and water conservation. Whereas, marital status, source of income and farmland size have no significant association with the practice. Moreover, awareness creation among local community, facilitating training and initiating farmers on usage of Vetiver grass and experience sharing among users and other farmers within the kebele administration was suggested.
Abstract: Soil erosion is one of the most series problems for the agricultural sector in Ethiopia. There is a need to understand the effective soil and water conservation practices. Therefore, feasible, easy, socially acceptable and environmentally friendly soil conservation practice is essential in the study area due to existence of severe soil erosion. The...
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Analysis on Dust Control Technology in Open-pit Quarry
Issue:
Volume 10, Issue 1, March 2021
Pages:
28-32
Received:
29 January 2021
Published:
10 March 2021
Abstract: In order to analyze the present situation of dust hazards in the process of mining in the open-pit quarry and solve the problem of dust pollution, according to the production process characteristics of the open-pit quarry, the characteristics and dust properties of the open-pit quarry were analyzed and studied, and the rules of dust production in the open-pit quarry were obtained. Based on the basis of the research on the law of producing dust and dust properties, in view of the blasting operation, drilling, crushing screening operation and blanking operation and so on various production technology, respectively, puts forward the demolition operations fog gun dust suppression technology, drilling rig drilling dust removal technology, dump truck, crusher airtight spray dust spray dust suppression technology, screening airtight smoke dust purification technology and scale blanking dust removal technology such as prevention and control technology, through the technical mechanism of dust and dust efficiency of experimental research, formed a set of suitable for quarry dust control technology parameters, through the production process in the open air quarry in practical applications, It realizes the dust control in the whole process from mining to production of finished products in the open-pit quarry, greatly reduces the dust concentration in the production process of the open-pit quarry, and the comprehensive dust removal efficiency reaches more than 85%, which provides the basic basis for dust control in the open-pit quarry.
Abstract: In order to analyze the present situation of dust hazards in the process of mining in the open-pit quarry and solve the problem of dust pollution, according to the production process characteristics of the open-pit quarry, the characteristics and dust properties of the open-pit quarry were analyzed and studied, and the rules of dust production in t...
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Supply Chain Management as a Competitive Advantage of Fast Moving Consumer Goods SMEs in South Africa
Issue:
Volume 10, Issue 1, March 2021
Pages:
33-38
Received:
15 February 2021
Accepted:
8 March 2021
Published:
17 March 2021
Abstract: The supply chain management strategy adoption by enterprises in the last four decades, has made enterprises more customer-centric, as they focus on product flow from source to the ultimate end-user. Consequently, the phrase ‘customer is king’ has become synonymous with good customer service. The study explored the coordinated supply chain processes as a competitive advantage for the South African small and medium-sized enterprises (SMEs) of fast moving consumer goods (FMCGs). The study was grounded in the theory of competitive advantage and qualitative research methodology and constructivism research paradigm were used. The SMEs from Gauteng province, which is the South Africa’s leading economic hub provided the sample for the study. Non-probability sampling was used in selecting the participants of the study who were the owner/managers of the SMEs. The interview covered enterprise relationship with suppliers of fast moving consumer goods (FMCGs) and third-party logistics (3PL) transportation service. The recorded interviews were transcribed, translated, coded and analysed via content analysis to determine the outcome of the study. The results indicated that SCM improved cost-effectiveness through savings on 3PL transportation service optimisation shared amongst the SMEs, and improved customer service, through enhanced supplier-customer relationship that maintained continuous flow of products/services.
Abstract: The supply chain management strategy adoption by enterprises in the last four decades, has made enterprises more customer-centric, as they focus on product flow from source to the ultimate end-user. Consequently, the phrase ‘customer is king’ has become synonymous with good customer service. The study explored the coordinated supply chain processes...
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