Journal articles: 'Ghana Chamber of Mines'

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Marfo, Emmanuel Opoku, Kwame Oduro Amoako, Henry Asanti Antwi, Benjamin Ghansah, and Gausu Mohammed Baba. "Corporate Social Responsibility: Institutional Behavior Differences in Extractive Industry." International Journal of Engineering Research in Africa 33 (November 2017): 194–215. http://dx.doi.org/10.4028/www.scientific.net/jera.33.194.

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The developed countries’ institutional research undertaken on corporate social responsibilities (CSR) have shown a positive relationship between accessibility of financial related assets and CSR. Contentions that we classified as the Institutional Difference Hypothesis (IDH) drawn from the institutional writing, on the other hand, propose that institutional contrasts amid of developing and the developed economies are prone to result in diverse CSR propositions. Incorporating the rationale of IDH with understanding of knowledge from slack resource theory, we contend that there exists a negative relationship between fiscal resources accessibility and CSR investments for mining companies in Ghana, a sub-Saharan African developing economy. We utilize a well-protected data from the Ghana Investment Promotion Center (GIPC), Ghana Stock Exchange (GSE) and Ghana Chamber of mines (GCM) and find that Return on Ordinary Share, Return on Sales, and Net Profit were reliably connected with lower CSR disbursements. We highlight the ramifications of our discoveries for academics’ examination and corporate practitioners.

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Arthur, Clement Lamboi, Junjie Wu, Milton Yago, and Jinhua Zhang. "Investigating performance indicators disclosure in sustainability reports of large mining companies in Ghana." Corporate Governance: The International Journal of Business in Society 17, no. 4 (2017): 643–60. http://dx.doi.org/10.1108/cg-05-2016-0124.

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Purpose The purpose of this study is to examine the degree, contents and trend development of Global Reporting Initiative (GRI) performance indicators disclosed in sustainability reports of large mining companies in Ghana. Design/methodology/approach Content analysis methods are used to analyse 50 sustainability reports of ten large-scale mining companies in Ghana, covering the period 2008-2012. Findings The study finds that there has been a widening and increasing trend in the disclosure of performance indicators in sustainability reports of the large mining companies in Ghana, in accordance with GRI guidelines. The findings suggest that good progress in the strategic sector has been made in the voluntary adoption of the GRI guidelines to increase transparency, credibility and comparability in sustainability reporting. The findings also indicate areas to be improved. Practical implications The Government of Ghana and the Ghana Chamber of Mines could learn from the findings about the current status of this matter in order for them to formulate policies and regulations which would encourage the mining sector in moving forward in the adoption of international reporting standards. Originality/value This paper initializes investigation into the degree, contents and trends of performance indicators in sustainability reports of large mining companies in Ghana using content analysis.

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Yakovlev, Ye O., V. M. Yermakov, and O. A. Ulytskyi. "ECOLOGICAL CONSEQUENCES ATOMIC EXPLOSION CHAMBER FLOODING OF MINE “YUNCOM” (CENTRAL DONBAS)." Мінеральні ресурси України, no. 1 (April 25, 2019): 38–44. http://dx.doi.org/10.31996/mru.2019.1.38-44.

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Authors analyzed of ecological hydrogeological conditions of coal mine Yuncom underground nuclear blast chamber flooding and possible risk of the ground and surface water contamination.An analysis of the compatible graphs of semi-logarithmic dependences lg S0/St) of the time observation of the levels rise in the mines of the NTGS according to the analytical model that was developed on the example of flooding of the Stakhanov group of mines indicates their hydrodynamic analogy and the possibility of separation of three principal phases of the hydraulically-filtration process of the Donbas mines flooding:1 ) initial accelerated rise of the level is mainly connected with decrease in volume of the peripheral part of the depression due to reduced volume of mining operations and the prevailing movement of underground flow in its deep permeable part; time extension up to 3–4 months;2) predominance in the lithologic composition of coal-bearing rocks of the weakly permeable sandy-clay rocks (up to 70–80 % of total capacity) with increased sorption capacity increases the waterproofing capacity of the rock mass in conditions of further deformation and its full water saturation during flooding of the mine.3) For the zone of the “Klivazh” object influence is characterized by the limitation (in the current conditions of incomplete water saturation) migration of radioactive explosion products due to their predominant concentration in the difficult soluble formations of the explosive chamber and the influence of coal-bearing, weakly permeable rocks sorption.Main hazards of these processes are connected with stohastic parameters of mine water movement and dangerous toxic contaminants migration into fresh water aquifers (zone of active water exchange) and surface water objects.Modern system of ground water movement during regional coal mines flooding within Central Donbas has a complex hydraulic-filtration structure that is why this situation demands of the new calculative models elaboration.

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Ayaaba, Esther, Yan Li, Jiali Yuan, and Chunhui Ni. "Occupational Respiratory Diseases of Miners from Two Gold Mines in Ghana." International Journal of Environmental Research and Public Health 14, no. 3 (2017): 337. http://dx.doi.org/10.3390/ijerph14030337.

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Peiris, Nuwan. "Ghana v. Ivory Coast." American Journal of International Law 112, no. 1 (2018): 88–93. http://dx.doi.org/10.1017/ajil.2018.10.

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The charm of maritime delimitation and its enigmatic lessons hardly surprise us, yet the reasoning behind them sometimes seems seductively elusive. On September 23, 2017, a Special Chamber of the International Tribunal for the Law of the Sea (ITLOS) issued its decision in Ghana v. Ivory Coast. The glamour of maritime delimitation is reason enough to note the judgment, but the case also addresses the equidistance principle for maritime delimitation, the standard for the acceptance of a tacit agreement, and international responsibility under Article 83 of the United Nations Convention on the Law of the Sea (UNCLOS).

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Quintal, Diane. "Sporotrichosis Infection on Mines of the Witwatersrand." Journal of Cutaneous Medicine and Surgery 4, no. 1 (2000): 51–54. http://dx.doi.org/10.1177/120347540000400113.

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Background: Our knowledge of skin disease is often based on fortuitous situations that have provided opportunities for observation and study of the disease. One of these diseases is sporotrichosis. Objective: This article examines a symposium published in 1947 by the Transvaal Chamber of Mines in South Africa. It reviews the approach taken in the investigation of a large outbreak of sporotrichosis in the mine workers. Conclusion: The investigation of this outbreak has contributed significantly to our present day knowledge of sporotrichosis, the causative organism, its mode of spread, and its clinical features. It is also a striking example of meticulous scientific research and observation.

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Brazhnik, O. I., and A. A. Rudenko. "Pilot test results of GP-200/11x500-m stage chamber pump." Mining Industry (Gornay Promishlennost), no. 6/2020 (December 29, 2020): 53–55. http://dx.doi.org/10.30686/1609-9192-2020-6-53-55.

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The article reviews and analyses issues that include optimisation of pumping equipment for efficient drainage of saline water in conditions of underground mines. It describes approaches to design improvement of pumping equipment and shows the economic effect of its implementation based on the results of pilot tests.

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Amponsah-Tawiah, Kwesi, and Justice Mensah. "Exploring the link between corporate social responsibility and health and safety in the mines." Journal of Global Responsibility 6, no. 1 (2015): 65–79. http://dx.doi.org/10.1108/jgr-09-2014-0029.

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Purpose – The aim of this paper is to set a baseline understanding of the corporate social responsibility (CSR) concept amongst the different stakeholders in the mining industry in Ghana and further examine their appreciation of issues of occupational health and safety. It explored the integration of issues of health and safety of employees into the broader CSR agenda through a stakeholder analysis. Design/methodology/approach – The study population comprised various stakeholders operating in the mining industry of Ghana. The purposive sampling technique was used in the selection of the organisations/institutions that participated in the study. In all, 35 people were interviewed, and the interview data were analysed using thematic-content analysis. Findings – The findings provide an insight into how the various stakeholders in the mining industry in Ghana understood the CSR concept and how they went about practising it. Appreciation of issues health and safety by the various stakeholders also received considerable attention. All the stakeholders equated CSR to community relations. In all the cases, respondents referred to the local community as their focal point when discussing the concept. Originality/value – On the basis of this paper, it appears that mining companies in Ghana have looked upon the concept as a strategic challenge and not as a series of high-profile initiatives aimed at ensuring a responsible business practice. This paper adds to the literature by providing a perspective on how CSR associates with health and safety.

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Lei, Yu, Yan Long Jiang, Chun Ling Zhu, Hong Shi, and Yu Wang. "Strength Check and Optimization Design of Movable Mine Refuge Chamber." Applied Mechanics and Materials 66-68 (July 2011): 407–12. http://dx.doi.org/10.4028/www.scientific.net/amm.66-68.407.

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Movable mine refuge chamber is widely used in coal mines for protecting miners from coalmine accident. During a coalmine accident, there will be large heat impact load and stress on the movable mine refuge chamber caused by high temperature and high pressure. Therefore the strength of the movable mine refuge chamber should be carefully designed to meet the safety requirement with the possible lightest weight. Based on analysis of the structure dimensions, material properties, and operating conditions, a finite element model is developed with an emphasis on the effect of the layout and sizes of stiffeners and structural form of the chamber. A comparison of different design schemes is made and the calculation result is given. This work could be helpful for optimization design of China’s movable mine refuge chamber.

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Ermakova, Inna, and Vyacheslav Fedusov. "Chamber Relative to the Previously Extracted Longwall Panel." E3S Web of Conferences 174 (2020): 01005. http://dx.doi.org/10.1051/e3sconf/202017401005.

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Longwall salvage activities at JSC SUEK-Kuzbass underground coal mines may experience unforeseen delays. To determine the causes of the delays in the salvage activities, we have considered various factors. Firstly, we have analyzed the effect of the longwall face width on the duration of salvage activities. We have proved that this factor does not have a statistically significant effect on the duration of salvage activities. We have established that the duration of the salvage activities is determined by the location of the salvage chambers relative to the pillar and the previously extracted panel. In the event that contiguous previously extracted panel is located near the salvage chamber, the salvage time is doubled on average.

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Yermakova, Inna, and Vyacheslav Fedusov. "Analysis of Longwall Salvage Operations in JSC SUEK-Kuzbass Underground Mines." E3S Web of Conferences 105 (2019): 01049. http://dx.doi.org/10.1051/e3sconf/201910501049.

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The longwall coal mining method is the most productive mining method. However, the salvage operations which include the formation of the salvage chamber and the salvage of longwall face equipment require improvement. In 2011-2017, the time spent for salvage operations in SUEK-Kuzbass mines exceeded the standard time by more than 900 days. It has been established that the longwall face width from 230 to 300 m has no effect on the duration of salvage operations.

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Wiggins, Trevor. "Teaching Culture: Thoughts from Northern Ghana." British Journal of Music Education 15, no. 2 (1998): 201–9. http://dx.doi.org/10.1017/s0265051700009359.

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This article considers ideas and issues raised by an examination of the function of education, particularly music education in Ghana. There are many musical traditions in Ghana that the people want to pass on to the younger generation. How are these to be taught or learned? Where are the duties and boundaries of formal education to be drawn? What can be expected of parents and family? What is the situation for the teacher, given that few teachers return to their native area after training at a centralised institution? The article is based around an interview with the Paramount Chief (Naa) Puoure Puobe Chiir VII of Nandom in the Upper West Region of Ghana. He is one of twenty-five members of the National Council of State of Ghana (a non-elected Upper Chamber) and, as mentioned in the interview, vice-president of the National House of Chiefs and Chairman of its Research Committee.

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Li, Jun, Lei Xu, Nian Yong Zhou, Yan Long Jiang, and He Xu Wang. "Design and Research of Vortex-Tube-Ice-Storage System Used in Refuge Chamber." Applied Mechanics and Materials 741 (March 2015): 9–14. http://dx.doi.org/10.4028/www.scientific.net/amm.741.9.

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When disasters occur under coal mines, the electric power system and compressed air system would be highly vulnerable to damage, while heat load will be produced in the chamber because of victims’ metabolism and equipments’ operation, so it is crucial to control temperature in the chamber effectively. This paper presents a new type of vortex tube ice storage refrigeration technology, and the property of a vortex tube is tested and theory of the ice storage system is studied, then the ice making time and the best working state are obtained. It provides theoretical basis for ice storage refrigeration of mine rescue, and it is of important reference value for engineering design.

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Eshun, P. A., B. O. Affum, and A. Boakye. "Drill and Blast Performance Evaluation at the Obra Pit of Chirano Gold Mines Ltd, Ghana." Ghana Mining Journal 16, no. 2 (2016): 28–35. http://dx.doi.org/10.4314/gm.v16i2.4.

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This paper investigates the causes of inefficient fragmentation and formation of toes in the Obra pit of Chirano Gold Mines Ltd and recommends best practices in order to produce optimum fragmentation to feed the crusher at a reduced cost and to provide good working pit floors. The methods employed included: drilling performance analysis using statistical methods; fragmentation analysis of blasting performance using Kuz-Ram Model and Wipfrag software; determination of the velocity of detonation of the bulk explosive using MREL Micro Trap VOD/Data Recorder; and estimation of the cost of secondary drilling and blasting using Mine Management Reporting Software. From the analyses, it was observed that the blast designed parameters and blasting practices were acceptable to produce good fragmentation but the actual drilling parameters deviated from the designed parameters by about 25%, 24% and 26% in hole depth, burden and spacing respectively. It was concluded that the cause of the ineffective fragmentation leading to high cost of secondary breakage and uneven pit floors was due to operational errors during drilling. It is therefore recommended that in order to reduce excessive deviations in the drilling parameters, periodic training of operators must be conducted, supervision of drilling and blasting operations must be enhanced, and inclinometers should be used during drilling activities to ensure the accuracy and precision of all blast holes. Keywords: Drilling, Blasting, Fragmentation, Kuz-Ram Model, Wipfrag Software

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ZHAO, Bin. "The Curious Case of Ghana/Côte d'Ivoire: A Consistent Approach to Hydrocarbon Activities in the Disputed Area?" Asian Journal of International Law 10, no. 1 (2019): 94–124. http://dx.doi.org/10.1017/s204425131900016x.

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AbstractThe Ghana/Côte d'Ivoire case is the first time that an ITLOS ad hoc chamber has addressed the lawfulness of unilateral hydrocarbon activities in a disputed maritime area. This paper analyzes the Chamber's ruling on Côte d'Ivoire's submission no. 2, which covers several important issues: the jurisdiction of the Chamber to decide on submission no. 2, the alleged violation of sovereign rights, and the alleged violation of Article 83(3) of UNCLOS. The paper argues that the Chamber's jurisdictional basis of forum prorogatum is questionable, and that there are inconsistent approaches between the Judgment and the Order of the provisional measures. Additionally, there are not only inconsistent understandings of the “Ivorian maritime area” within the same submission no. 2 by the Chamber, but also a logical gap in the Chamber's reasoning with regard to submission no. 2(iii). Consequently, the Chamber's inconsistent approaches may jeopardize the persuasiveness of its judgment.

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Eades, Robert, and Kyle Perry. "Evaluation of a 38 L Explosive Chamber for Testing Coal Dust Explosibility." Journal of Combustion 2019 (September 2, 2019): 1–7. http://dx.doi.org/10.1155/2019/5810173.

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Coal dust explosions are the deadliest disasters facing the coal mining industry. Research has been conducted globally on this topic for decades. The first explosibility tests in the United States were performed by the Bureau of Mines using a 20 L chamber. This serves as the basis for all standardized tests used for combustible dusts. The purpose of this paper is to investigate the use of a new 38 L chamber for testing coal dust explosions. The 38 L chamber features design modifications to model the unique conditions present in an underground coal mine when compared to other industries where combustible dust hazards are present. A series of explosibility tests were conducted within the explosive chamber using a sample of Pittsburgh pulverized coal dust and a five kJ Sobbe igniter. Analysis to find the maximum pressure ratio and Kst combustible dust parameter was performed for each trial. Based upon this analysis, observations are made for each concentration regarding whether the explosibility test was under-fueled or over-fueled. Based upon this analysis, a recommendation for future explosibility testing concentrations is made.

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Gerolymatou, E., and R. Nova. "An Analysis of Chamber Filling Effects on the Remediation of Flooded Gypsum and Anhydrite Mines." Rock Mechanics and Rock Engineering 41, no. 3 (2007): 403–19. http://dx.doi.org/10.1007/s00603-007-0141-z.

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Kalsbeek, Feiko, Bjørn Hermansen, Christian Knudsen, Leif Thorning, and Marianne Thorsen. "Co-operation with the Geological Survey Department of Ghana." Geological Survey of Denmark and Greenland (GEUS) Bulletin 4 (July 20, 2004): 93–96. http://dx.doi.org/10.34194/geusb.v4.4796.

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Between October 2001 and the end of 2003 there was a close co-operation between the Geological Survey of Denmark and Greenland (GEUS) and the Geological Survey Department of Ghana (GSD), as part of a project to enhance GSD’s institutional capabilities and effectiveness, mainly in the fields of management, geological mapping, map production and data handling. During this period a team of geologists, GIS (Geographic Information System) and database experts as well as administrative staff from GEUS have visited GSD, and GSD officers have visited GEUS in Copenhagen. The main obstacles to GSD becoming an effective organisation are its status as a department under the Ghana Ministry of Mines, insufficient funding by the government, and poor remuneration of its professional staff. To overcome these obstacles, attempts are being made to change the status of GSD from a ‘civil servant organisation’ into a semiautonomous institution, which will permit the Survey to generate funding for its core activities by providing services to outside organisations, and pay better salaries to its personnel. Despite many problems, geological mapping has been resumed and three new geological maps have been produced by GSD during the project and stored in GIS format. A mapping manual has been prepared, and the structure and ‘Mission and Vision Statements’ for the Survey have been revised.

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Wang, Hetang, and Yan Tang. "Numerical Simulation of Air Entrainment Performance of a Foam Generator Used for Dust Control in Coal Mines." Mathematical Problems in Engineering 2019 (August 4, 2019): 1–7. http://dx.doi.org/10.1155/2019/7609748.

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Mine dust is one of the most serious environmental hazards in the coal mining process. This paper introduces a numerical simulation of a novel foam generator used for dust control in coal mines. The amount of foam generated by this device significantly depends on the amount of air entrainment. Therefore, a computational fluid dynamics (CFD) method was used to study three influencing factors, namely, throat-nozzle distance, mixing throat length, and the contraction angle of the suction chamber. The predicted values by the CFD simulation proved to be in good agreement with the experimental data. The results revealed that the air entrainment reached its maximum when the ratio of throat-nozzle distance to mixing throat length was 2/3. The optimum values of the throat ratio (its length to diameter) and the contraction angle of the suction chamber were obtained at 20 and 5°, respectively. This research provides essential guidance in the geometric parameter design of the self-suction type foam generator, which has the advantage of negating the need for compressed-air pipelines and having high reliability, compared to traditional foam generators.

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Kaufman, Heidi. "KING SOLOMON'S MINES?: AFRICAN JEWRY, BRITISH IMPERIALISM, AND H. RIDER HAGGARD'S DIAMONDS." Victorian Literature and Culture 33, no. 2 (2005): 517–39. http://dx.doi.org/10.1017/s1060150305050965.

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IN KING SOLOMON'S MINES(1885), H. Rider Haggard describes the journey of three robust English men who successfully penetrate a sexualized landscape in southern Africa, depicted as both the body of the long-dead Queen of Sheba and that of her contemporary, King Solomon. The three English adventurers, led by the narrator Allan Quatermain, climb “Sheba's breasts” (26; ch. 2), traverse her torso, and arrive finally at the location where diamonds are stored inside her cavernous body, in the space Haggard calls “King Solomon's treasure chamber” (27; ch. 2). Narrative desire and the mystery of the Jewish patriarch's ancient empire propel these men through a series of male bonding adventures that lead to their arrival and conquest of the famed mines, where they pocket diamonds “as large as pigeon-eggs” (225; ch. 17) and plot their escape from what they fear may be a sealed cave.

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Grobler, H. "Status of the phasing out of the Chamber of Mines of South Africa Certificates of Competency." Journal of the Southern African Institute of Mining and Metallurgy 117, no. 8 (2017): 793–802. http://dx.doi.org/10.17159/2411-9717/2017/v117n8a10.

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FU, YUE, TOR CHRISTIAN HESTENES, and OLE SÆTHER. "Review of Afrotropical Thienemanniella Kieffer (Diptera: Chironomidae: Orthocladiinae)." Zootaxa 2338, no. 1 (2010): 1. http://dx.doi.org/10.11646/zootaxa.2338.1.1.

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A new species from Ghana, Thienemanniella cavata is described and illustrated as adult male. T. antennata Freeman, 1953, T. trivittata Goetghebuer, 1935 and T. lineola Freeman, 1953 are redescribed. Additional measurements and comments are given for T. fuga Lehmann, 1979. Additional records of T. antennata from Ghana and T. fuga from South Africa and Tanzania are given. T. afra Lehmann, 1981 is tentatively transferred to the genus Corynoneurella Brundin. Male and female genital structures are discussed. A large bursa below gonapophysis VIII and the vagina is considered to be an egg-laying chamber. Keys to the known males and females of Afrotropical species of the genus Thienemanniella are given.

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Packard, Randall M. "The Invention of the ‘Tropical Worker’: Medical Research and the Quest for Central African Labor on the South African Gold Mines, 1903–36." Journal of African History 34, no. 2 (1993): 271–92. http://dx.doi.org/10.1017/s0021853700033351.

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In 1903 the South African mining industry began recruiting African labor from Central Africa in order to shore up their labor supplies. From the outset, Central African recruitment was problematic, for Central African mine workers died at very high rates. The primary source of Central African mortality was pneumonia. In response to this high mortality the Union government threatened to close down Central African recruitment, a threat which they carried out in 1913. From 1911 to 1933, the mining industry fought to maintain, and then after 1913 to regain access to Central African labor. Of central importance in this struggle were efforts to develop a vaccine against pneumonia. While the mine medical community failed to produce an effective vaccine against pneumonia, the Chamber of Mines successfully employed the promise of a vaccine eventually to regain access to Central African Labor in 1934. The mines achieved this goal by controlling the terrain of discourse on the health of Central African workers, directing attention away from the unhealthy conditions of mine labor and toward the imagined cultural and biological peculiarities of these workers. In doing so the mines constructed a new social category, ‘tropical workers’ or ‘tropicals’. The paper explores the political, economic and intellectual environment within which this cultural construction was created and employed.

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Valiulin, S. V., A. A. Onischuk, A. M. Baklanov, et al. "Effect of coal mine organic aerosol on the methane/air lower explosive limit." International Journal of Coal Science & Technology 7, no. 4 (2020): 778–86. http://dx.doi.org/10.1007/s40789-020-00313-4.

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AbstractOrganic aerosol is formed in coal mines due to heat release and evaporation of organics from coal during the longwall operation. This frictional heating occurs when a metallic cutting bit strikes a rock. Thus formed organic aerosol can contribute significantly to the explosivity of methane/air atmosphere in coal mines. In this paper, the flammable limits for the methane–air mixtures with organic aerosol are determined. For this purpose, organic aerosol is synthesizes from the coal-tar pitch in a laboratory evaporation–nucleation flow chamber. Aerosol particles synthesized under laboratory conditions are aggregates consisting of small primary particles with the fractal-like dimension Df = 2.0 ± 0.1, which is close to Df = 2.1 ± 0.1 of coal mine aerosol. It is shown that the flammability of organic aerosol/methane mixture in air is in good agreement with the Le Chatelier additive principle. The lower ignition limit for the pure organic aerosol in air is 44 g/m3.

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Pysmennyi, Serhii, Mykhailo Fedko, Nataliia Shvaher, and Serhii Chukharev. "Mining of rich iron ore deposits of complex structure under the conditions of rock pressure development." E3S Web of Conferences 201 (2020): 01022. http://dx.doi.org/10.1051/e3sconf/202020101022.

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The purpose of research is to increase the ore mass extraction ratio when mining rich iron ores by changing the shape of the stope chamber, as well as to substantiate its stable parameters under the conditions of the rock pressure manifestation. Used in mines existing methodologies for determining the structural elements of mining system are based on calculated equivalent spans of outcropping the stope chambers, which have a rectangular or tent shape. For the first time using the ANSYS software package, it has been determined that the formation of a compensation chamber of quasi-parabolic shape can significantly reduce the stresses concentration around the stope block. Thus, the formation of a stope chamber of a quasi-parabolic shape makes it possible to reduce vertical stresses as compared to horizontal ones without increasing horizontal pressure. When mining the extraction block, it is proposed to form the stope chamber of a quasi-parabolic shape with geometric parameters that directly depend on the parameters of the deposit, the depth of mining, and the direction of main stresses action. Dependences have been determined of the stresses value on the depth of mining and the physical properties of rocks, as well as on the length along the strike of the ore deposit. Thus, depending on the mining depth and length along the strike, rock pressure on the stope chamber of a quasi-parabolic shape decreases under non-uniform loading. The formation of a stope chamber of a quasi-parabolic shape will increase by 1.2 – 1.5 times the volume of pure ore that is recovered from the block.

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Afful-Broni, Anthony. "Relationship between Motivation and Job Performance at the University of Mines and Technology, Tarkwa, Ghana: Leadership Lessons." Creative Education 03, no. 03 (2012): 309–14. http://dx.doi.org/10.4236/ce.2012.33049.

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Doyi, I., O. C. Oppon, E. T. Glover, G. Gbeddy, and W. Kokroko. "Assessment of occupational radiation exposure in underground artisanal gold mines in Tongo, Upper East Region of Ghana." Journal of Environmental Radioactivity 126 (December 2013): 77–82. http://dx.doi.org/10.1016/j.jenvrad.2013.07.007.

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McCreath, Millicent, and Zoe Scanlon. "Prospects for the Future Use of ITLOS Ad Hoc Special Chambers after the Ghana/Côte d’Ivoire Case." Law & Practice of International Courts and Tribunals 17, no. 2 (2018): 309–34. http://dx.doi.org/10.1163/15718034-12341382.

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Abstract The maritime boundary delimitation decision in the Ghana/Côte d’Ivoire Case is remarkable as the first decision of an ad hoc chamber of the International Tribunal for the Law of the Sea (ITLOS). This article evaluates the advantages of this critically under-examined dispute settlement mechanism, its operation in this case and the consequent prospects for the future use of such chambers. To date, the ad hoc chambers of both ITLOS and the International Court of Justice (ICJ) have rarely been used. Examining their respective procedures, legal frameworks, and performance, this article evaluates the comparative advantages and disadvantages of ITLOS ad hoc chambers vis-à-vis both ad hoc arbitration and the full bench of ITLOS. Although limited conclusions on the prospects for the mechanism’s future use can be drawn from this single decision, in light of the broadly positive outcome, prospective parties may be drawn to the possibilities and potential advantages of the ITLOS ad hoc chamber mechanism in the future.

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Kyerematen, Rosina, Samuel Adu-Acheampong, Daniel Acquah-Lamptey, Roger Sigismund Anderson, Erasmus H. Owusu, and Jones Mantey. "Butterfly Diversity: An Indicator for Environmental Health within Tarkwa Gold Mine, Ghana." Environment and Natural Resources Research 8, no. 3 (2018): 69. http://dx.doi.org/10.5539/enrr.v8n3p69.

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Many human societies, rely on proceeds from mining of metals and fossil fuels for income generation as well as resource supplies from biodiversity. However, these mining activities are in conflict with and threaten the sustainable utilisation and conservation of biodiversity. We used butterflies, a known bioindicator species as surrogates to measure the level of change in vegetation within Tarkwa Gold Mines (TGM) in Ghana. Butterfly assemblages were sampled within the concession and characterised in terms of diversity indices and vegetation type. Transect counts, aerial netting and charaxes trapping were employed to assess butterfly assemblages. Results showed that although there were high records of degraded forest and savanna indicator species, the fairly high presence of deep forested species also shows that some forested areas within the concession are still in good condition. Recommendations are made to maintain forest blocks to serve as refugia for butterflies and urge management to institute measures to restore old and abandoned mined sites. We also recommend policy makers to enact laws that will ensure that, mining organisations lay down plans for sustainable mine operations and biodiversity conservation before being granted licenses to operate in Ghana.

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Cao, Hui, Lian Ku Xie, Xiao Cong Yang, and Zan Cheng Chen. "Research and Practice of Rock Mechanics for Mining of Large and Thick Pillars with Inclusion of Fillings." Advanced Materials Research 734-737 (August 2013): 796–801. http://dx.doi.org/10.4028/www.scientific.net/amr.734-737.796.

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Through investigation and test analysis of current situation of testing stope and surrounding filling and isolation layer of mines, understand the basic mechanical characteristics and integrity characteristic of surrounding rock mass and fillings of chamber to be mined; combining with comparative analysis of technical and economic index of mining, considering making full use of the existing personnel, equipment and technology, it is concluded that stoping technology scheme of chamber is large-diameter deep-hole afterwards filling mining method; by using the numerical analysis method, through comprehensive analysis of stress, deformation and failure characteristics of surrounding fillings in mining, finally determine the optimal recovery scheme is mining by recovery unit of upper and lower plate. At present the ore block has been successfully and safely mined. Research results can provide reference for recovery of similar ore block, in order to realize safe and efficient recovery of "island" ore block in mining with filling mining method.

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Ismail, Umar-Faruk Froko. "The Impact of Safety Climate on Safety Performance in a Gold Mining Company in Ghana." International Journal of Management Excellence 5, no. 1 (2015): 556–66. http://dx.doi.org/10.17722/ijme.v5i1.795.

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The study investigated the influence of safety climate on safety performance among employees in a multi-national gold mining company in Ghana. Safety climate was conceptualized and measured in terms of employee perceptions of management value for safety, supervisor safety practices, safety communication, safety training and safety system. Safety performance was conceptualized and measured in terms of employee safety compliance and safety participation, that is, how they make suggestions to improve safety in the mining environment. Using a cross-sectional survey design, 235 workers in the mines completed questionnaires on safety climate and safety performance. Pearson correlations and multiple regression analysis of the data indicated positive relationship between safety climate and safety performance as predicted. Safety systems predicted both safety compliance and participation. Safety communication and supervisory practices predicted safety compliance and safety participation respectively. The results are discussed in the framework of the theories of reasoned action and planned behaviour.

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Snapir, B., D. M. Simms, and T. W. Waine. "Mapping the expansion of galamsey gold mines in the cocoa growing area of Ghana using optical remote sensing." International Journal of Applied Earth Observation and Geoinformation 58 (June 2017): 225–33. http://dx.doi.org/10.1016/j.jag.2017.02.009.

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Kuzmin, E. V., A. V. Kalakutskiy, M. A. Tarasov, and A. A. Morozov. "Concept for Disposal of Class 2 and Class 3 Radioactive Waste in Underground Workings with Isolating Backfilling using Paste made with Processed Uranium Ore Materials." Mining Industry (Gornay Promishlennost), no. 6/2020 (December 29, 2020): 31–36. http://dx.doi.org/10.30686/1609-9192-2020-6-31-36.

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The paper presents a concept for disposal of Class 2 and Class 3 radioactive waste in existing workings and chambers in the underground uranium mines of the Priargunsky Industrial Mining and Chemical Union PJSC with isolation of radioactive waste storage chambers using paste backfilling made with processed uranium ore materials and sealing of cracks in host rock by injection consolidation. The need is shown to enhance the strength of radioactive waste containers to increase the number of tiers in the storage blocks to make better use of the available chamber space. Data is provided on the forecast hydrogeological conditions in deep levels (up to 1000 m) of Mine No.6.

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Huang, Zhi An, Xin Tong Wang, Ying Hua Zhang, and Yu Kun Gao. "The R&D of the Emergency Rescue Vehicles Based on Borehole-Type Refuge Chamber." Advanced Materials Research 881-883 (January 2014): 1732–40. http://dx.doi.org/10.4028/www.scientific.net/amr.881-883.1732.

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So far, the control rooms require a lot of manpower and material resources to repair and maintenance. They are above the borehole-type refuge chamber. It is also possible that the equipment in control rooms is aged and the necessities are overdue. When an emergency appears, it can detain the rescue. Therefore, a kind of emergency rescue car for permanent drilling shelters is developed. It can replace the control room. It combines with relevant regulations, through counting, based on the conditions of mines affiliated to Jizhong Fengfeng Energy Group. The air supply system, the power supply system, the flow food system and the communication system of monitoring and controlling are designed in the car. After conducting laboratory experiments, the model of appropriate emergency rescue car, the types of functional equipment are determined. The layout and connections of each system are also designed in the car. These are based on the data and theories concluded from theoretical analysis.

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Ha, Quang Anh, Viet Hung Ly, and Van Chi Dao. "Research on developing a methodto estimate fugitive CH4 emissionfactors of coal surface mining in Quang Ninh province." Ministry of Science and Technology, Vietnam 63, no. 1 (2021): 16–21. http://dx.doi.org/10.31276/vjst.63(1).16-21.

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This article presents the approach and the results of estimating CH4 emission from surface mining in Quang Ninh province to develop its fugitive CH4 emission factors. The two largest active surface mines were selected named Nui Beo and Cao Son. By applying a direct measurement method with samples using a specific chamber, CH4 emission was collected and calculated for the whole mine. Results showed that CH4 emission varied from mine to mine both the total amount and its range of maximum and minimum. In detail, the total amount of CH4 emission from Cao Son is 19,032.87 m3with the range of 73.14% while these numbers of Nui Beo are 2,684.47 m3 and 76.38%, respectively. The CH4emission factors of surface mines then were estimated in the range of 0.0850 m3/ton and 0.0225 m3/ton respect to high emission level and low emission level. These values are close to the emission factors generated from Germany (0.015 - Lignite), Canada (0.088 - Lignite; 0.19 - Bituminous), South Africa (0.002÷0.064 - Bituminous). These emission factors are considered as scientific evidence to propose the national factors of CH4 emission of surface mining.

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Nude, Prosper M., Gordon Foli, and Sandow Mark Yidana. "Geochemical Assessment of Impact of Mine Spoils on the Quality of Stream Sediments within the Obuasi Mines Environment, Ghana." International Journal of Geosciences 02, no. 03 (2011): 259–66. http://dx.doi.org/10.4236/ijg.2011.23028.

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Kabiesz, Józef, Adam Lurka, and Jan Drzewiecki. "Selected Methods of Rock Structure Disintegration to Control Mining Hazards / Wybrane Metody Dezintegracji Struktury Skał Dla Zwalczania Zagrożeń Górniczych." Archives of Mining Sciences 60, no. 3 (2015): 807–24. http://dx.doi.org/10.1515/amsc-2015-0053.

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Abstract Natural hazards are inseparable element of underground mining, particularly of coal mining process. They are combated on a regular basis by many measures and effectiveness of these measures determines work safety in mines. Attempts to improve the effectiveness, presented in the paper is based on interference of seismic waves generated by blasting in a selected area of the rock mass and on modification of blasting technology. Preliminary results of detonating classical and new type of explosives in specific temperature and pressure conditions are analyzed. Theoretical and practical consideration of obtaining an interference effect of seismic waves is discussed. A device for making systems of starting notches and a construction of a chamber to test explosives are presented.

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Kobylkin, Sergey, and Alexander Kharisov. "Design features of coal mines ventilation using a room-and-pillar development system." Journal of Mining Institute 245 (December 2, 2020): 531–38. http://dx.doi.org/10.31897/pmi.2020.5.4.

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The safety of mining operations in coal mines for aerological factors depends on the quality of accepted and implemented ventilation design solutions. The current “Design Manual of coal mine ventilation” do not take into account the features of room-and-pillar development systems used in Russia. This increases the risk of explosions, fires, and gassing. The detailed study of foreign experience in designing ventilation for the considered development systems e of coal deposits allowed to formulate recommendations on the ventilation scheme organization for coal mines using a room-and-pillar development system and the procedure for ventilation during multi-entry gateroad development. Observations have shown that the use of the existing Russian procedure for airing mining sites with a room-and-pillar development system complicates the emergency rescue operations conduct. Low speeds and multidirectional air movement, difficult heat outflow, and the abandonment of coal pillars increase the risk of occurrence and late detection of endogenous fire. The results of numerical modeling have shown that the installation (parallel to the drifts) of ventilation structures in inter-chamber pillars will increase the reliability of ventilation by transferring the ventilation scheme from a complex diagonal to a complex parallel. It will also reduce the amount of air required for the mine site and the total aerodynamic drag. The research made it possible to formulate requirements for the design procedure for coal mines ventilation using a room-and-pillar development system, which consist in the order of working out blocks in the panel, and also the additional use of ventilation structures (light brattice clothes or blowing line brattice).

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Ziggah, Yao Yevenyo. "Regression Models for 2-Dimensional Cartesian Coordinates Prediction: A Case study at University of Mines and Technology (UMaT), Tarkwa-Ghana." International Journal of Computer Science & Engineering Survey 3, no. 6 (2012): 61–79. http://dx.doi.org/10.5121/ijcses.2012.3605.

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Wang, Xingkai, Wenbing Xie, Jianbiao Bai, Shengguo Jing, and Zhili Su. "Large-Deformation Failure Mechanism of Coal-Feeder Chamber and Construction of Wall-Mounted Coal Bunker in Underground Coal Mine with Soft, Swelling Floor Rocks." Advances in Civil Engineering 2019 (August 15, 2019): 1–16. http://dx.doi.org/10.1155/2019/6519189.

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In traditional vertical coal bunker systems, a coal-feeder chamber (CFC) must bear the whole weight of the bunker. However, maintenance of CFCs within soft, swelling floor rock is a challenge faced in underground coal mines. Floor-heave control is a complex problem and is still not well-solved. Moreover, there is no report on the construction of bunker without a CFC, especially under such weak floor-rock conditions. Based on the serious CFC collapse case at Xiashijie mine, China, this work analyzed the deformation characteristics, main influencing factors, and failure mechanisms of the CFC using a FLAC numerical model. The results indicate that the intrusion of water weakens the strength of the floor rock and causes significant expansive forces; thus, large deformations and tensile failure occur first in the floor, further causing shearing and tensile damage of the reinforced column and even overall instability of the CFC. Then, a new wall-mounted coal bunker (WMCB), without building the CFC, is proposed. The FLAC3D program was adopted to study the stability of the rocks surrounding the new bunker, and an optimized reinforcement scheme was determined. More importantly, a self-bearing system, which includes self-designed H-steel beams, H-steel brackets, and self-locking anchor cables, was proposed and constructed to bear the whole weight of the bunker. The stability of WMCB was verified by a theoretical safety assessment and field test. The invented WMCB could remain stable in spite of severe floor heave. This work can provide helpful references for the construction of vertical bunkers without CFCs in coal mines with soft, swelling floor rocks.

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Kissi-Abrokwah, Bernard, and Isaac Aboyom Anontise. "INFLUENCE OF PRE-MARITAL COUNSELLING ON SUSTAINABILITY OF MARRIAGES IN GREATER ACCRA REGION, GHANA." Advances in Social Sciences Research Journal 8, no. 8 (2021): 538–49. http://dx.doi.org/10.14738/assrj.88.10685.

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The study focused on elements discussed during pre-marital counselling and how those elements mediate on the sustainability of marriages in Greater Accra Region. Concurrent triangulation mixed method design was chosen for the study. For the quantitative phase 100 marriage people were randomly selected from 10 churches. At the qualitative phase 4 head pastors were conveniently selected from the 10 churches. Mean and standard deviation was used to analysed the questionnaire for the quantitative phase while the semi-structured interview scheduled was thematically analysed to explain issues as they emerged in the study. The study showed conflict resolution, communication, adjusting to individual difference, sex and romance, family lifecycles in marriage and separation from past-memories and families were some elements discussed during pre-marital counselling to help sustain the marriages. Again, respondents were of the view that pre-marital counselling is vital for the sustainability of marriages and should be made compulsory for new couples. Lastly, it was revealed the philosophy of pre-marital counselling is not only being aware of potential land mines in their relationship, but to equip married people to learn the skills necessary to successfully deal with challenges throughout their marriage which help in the sustainability. Therefore, it was recommended that the churches should employ professional counsellors who understand the principle of marriage counselling to perform the act of counselling and follow-up service should be done to check if the elements discussed during pre-marital counselling are being put into practice.

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Churchill, Robin. "Dispute Settlement in the Law of the Sea: Survey for 2017." International Journal of Marine and Coastal Law 33, no. 4 (2018): 653–82. http://dx.doi.org/10.1163/15718085-12334022.

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Abstract This is the latest in a series of annual surveys in this Journal reviewing dispute settlement in the law of the sea, both under the UN Convention on the Law of the Sea and outside the framework of the Convention. It covers developments in 2017. The most significant developments during the year were the judgment of the Special Chamber of the International Tribunal for the Law of the Sea in the Ghana/Côte d’Ivoire maritime boundary case and the final award of the tribunal in the Croatia/Slovenia arbitration. There were also a number of less significant developments.

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Malinowska, Agnieszka, Ryszard Hejmanowski, Artur Guzy, Andrzej Kwinta, and Paweł Ulmaniec. "The Sinkhole Occurrence Risk Mitigation in Urban Areas for the Historic Salt Mine." International Journal of Environmental Science & Sustainable Development 4, no. 2 (2019): 85. http://dx.doi.org/10.21625/essd.v4i2.558.

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The present research focuses on the definition of a novel methodology for sinkhole risk assessment above shallow salt mines. The research were carried out on the area above the salt mine, a World Heritage site. The study of vertical stresses on the basis of a theoretical state of rock mass deformation in the area of test chambers was performed. Furthermore, the risk of chamber collapse due to ventricular stress exceeding the limit specified in the zone were calculated based on the arch pressure theory. The final stage of the research consists of spatial analysis that leading to the identification of chambers potentially influenced by other risk factors. The research shown in the article strongly suggests that combined spatial analysis with analysis may lead to reliable sinkhole risk assessment methodology.

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Briskievicz, Danilo Arnaldo. "A educação no Brasil colonial a partir do Serro/MG (1702 a 1758)." Espacio, Tiempo y Educación 7, no. 1 (2020): 205–25. http://dx.doi.org/10.14516/ete.242.

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We investigate the history of education in colonial Brazil based on the formation of the city of Serro, one of the first gold towns occupied by the Portuguese metropolis in the 18th century. From the starting point of the colonization of the Serro do Frio mines in 1702 – documented in the book of record of the mines by the clerk Lourenço Carlos Mascarenhas de Araújo, we narrate the tensions between the literate and illiterate, between the colonizers and colonized, between the discoverers, indigenous peoples and African slaves. We show that education occurred in this context through the spontaneous teaching that takes place in daily life, in relations with the patron, with the Senate of the Chamber, and in the corporations of mechanical workshops for the construction of churches, creating an urbanity marked by race, economics and policies. The methodology is historical microanalysis, that is a microhistorical approach, with a reconstruction of narratives from primary and secondary sources. In addition to the narrative that reconstituted the history of education which occurred in the clash between Brazil and Portugal, or between Serro and Portugal, we sought parallels with Norbert Elias’ concept of civilizing process, Max Weber’s definition of modern bureaucratization, and Pierre Bourdieu’s conceptualization of how symbolic power operates to elucidate how and in what way informal education occurred in that context.

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Perinbam, B. Marie. "The Salt-Gold Alchemy in the Eighteenth and Nineteenth Century Mande World: If Men are Its Salt, Women are Its Gold." History in Africa 23 (January 1996): 257–78. http://dx.doi.org/10.2307/3171943.

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Given its enduring association with “civilized Africa,” “urban Africa,” “rich Africa,” and “commercial Africa,” it is hardly surprising that the trans-Saharan salt-gold trade caught the imagination of Arab authors between the eighth and sixteenth centuries. We recall, for example, that al-Ya'qubi (872/73), the principal source on the Mande empire of Ghana before al-Bakri's Kitab al-masalik wa-'lmamalik (1067/68) first revealed “commercial Africa” to the Islamic world, drawing attention to the two major trans-Saharan routes leading south to the Sudan from Zawila in the east and Sijilmasa in the west, both roads eventually conjoining at the kingdom of Ghana, an ancient heartland of the Mande world. Or that Ibn Hawqal (988) astonished the Islamic world with accounts of “rich Africa” by thrice repeating (at least) his story of the promissory note for 42,000 dinars owed by one Muhammad b. Abi Sa'dun—a salt-gold trade from Awdaghost dealing with the Soninke of Ghana—to his counterpart(s) in Sijilmasa. Or that al-Bakri (1068) confirmed the stories of “urban Africa” with his account of Sijilmasa, the trading entrepot “built in the year 575-758,” and surrounded by “numerous suburbs with lofty mansions and other splendid buildings (where) there are also many gardens.” Or that traveling south from Sijilmasa to Mali—a later heartland of the Mande world—Ibn Battuta (1355), not in the least impressed with Taghaza (the western Sahara's major saline), nonetheless acknowledged as its only virtue the “qintar upon qintar of gold” arriving there from the Malian mines, which Taghaza's inhabitants (“slaves of the Masufa,” he sniffed) exchanged for salt.

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Mark-Thiesen, Cassandra. "The “Bargain” of Collaboration: African Intermediaries, Indirect Recruitment, and Indigenous Institutions in the Ghanaian Gold Mining Industry, 1900–1906." International Review of Social History 57, S20 (2012): 17–38. http://dx.doi.org/10.1017/s0020859012000405.

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SummaryThis article argues that during the formative years of the colonial state in Ghana, European employers established new collaborative mechanisms with African intermediaries for the purpose of expanding the modern mining sector. They were forced to do so on account of severe labour-market limitations, resulting primarily from the slow death of slavery and debt bondage. These intermediaries, or “headmen”, were engaged because of their apparent affluence and authority in their home villages, from which they recruited mineworkers. However, allegiances between them and managers in the Tarkwa gold mines considerably slowed the pace towards free labour. Indeed, a system in which managers reinforced economic coercion and repressive relationships of social dependency between Africans, allocating African labour contractors fixed positions of power, resulted from the institutionalization of purportedly traditional processes of labour recruitment into the modern market.

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Karimi, Abdullah, and M. Razi Nalim. "Ignition by Hot Transient Jets in Confined Mixtures of Gaseous Fuels and Air." Journal of Combustion 2016 (2016): 1–13. http://dx.doi.org/10.1155/2016/9565839.

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Ignition of a combustible mixture by a transient jet of hot reactive gas is important for safety of mines, prechamber ignition in IC engines, detonation initiation, and novel constant-volume combustors. The present work is a numerical study of the hot jet ignition process in a long constant-volume combustor (CVC) that represents a wave rotor channel. The hot jet of combustion products from a prechamber is injected through a converging nozzle into the main CVC chamber containing a premixed fuel-air mixture. Combustion in a two-dimensional analogue of the CVC chamber is modeled using a global reaction mechanism, a skeletal mechanism, or a detailed reaction mechanism for three hydrocarbon fuels: methane, propane, and ethylene. Turbulence is modeled using the two-equation SSTk-ωmodel, and each reaction rate is limited by the local turbulent mixing timescale. Hybrid turbulent-kinetic schemes using some skeletal reaction mechanisms and detailed mechanisms are good predictors of the experimental data. Shock wave traverse of the reaction zone is seen to significantly increase the overall reaction rate, likely due to compression heating, as well as baroclinic vorticity generation that stirs and mixes reactants and increases flame area. Less easily ignitable methane mixture is found to show slower initial reaction and greater dependence on shock interaction than propane and ethylene.

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Shi, Jian, and Desen Kong. "Floor Heave Mechanism and Anti-Slide Piles Control Technology in Deep and Large-Span Chamber." Applied Sciences 11, no. 10 (2021): 4576. http://dx.doi.org/10.3390/app11104576.

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Based on plastic limit analysis, the deformation and fracture mechanism of the floor in the large-span chambers of deep mines are discussed and a similarity model test is carried out to verify the reliability of the theoretical analysis. The results show that the local shear failure first appears below the loading area and develops to the middle part of the test model with the increase in load; when the local shear failure develops to form a continuous sliding surface, continuous plastic flow deformation occurs; the distribution of the plastic zone and the deformation mode obtained from the similarity model test are basically consistent with the Hill-like deformation mode derived from plastic limit analysis. A control technology with anti-slide piles is proposed in order to deal with floor heave in large-span chambers on the basis of previous work. An approach for determining the supporting parameters of anti-slide piles is deduced. To deal with the floor heave in the −1100 level gangue winch room of the Huafeng Coal Mine, a comprehensive reinforcement scheme with anti-slide piles composed of discarded rails and anti-floating anchors is introduced for the floor heave control of the chambers. Site monitoring results show that the scheme not only effectively restrains the development of floor heave, but also ensures the long-term stability of the chamber floor.

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Yiallourides, Constantinos. "Calming the Waters in the West African Region: The Case of Ghana and Côte d'Ivoire." African Journal of International and Comparative Law 26, no. 4 (2018): 507–26. http://dx.doi.org/10.3366/ajicl.2018.0246.

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On 23 September 2017, a Special Chamber of the International Tribunal for the Law of the Sea (ITLOS) unanimously fixed the course of the maritime boundary between Ghana and Côte d'Ivoire and, thus, ended a long-standing dispute between the two West African neighbours. In addition to maritime delimitation, the legal reasoning and conclusions drawn in the judgment – especially in view of the Special Chamber's Provisional Measures Order of 25 April 2017 – are significant, in that they shed light on states' rights and obligations under the United Nations Convention on the Law of the Sea (UNCLOS) in respect of undelimited maritime areas, and also on the potential to respond meaningfully to unilateral resource-related activities in disputed waters through recourse to provisional measures of protection. The present article examines the key aspects of the Special Chamber's ruling and highlights some issues of practical significance for the future conduct of unilateral petroleum activities in disputed maritime areas.

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Usman Kaku, Dawuda, Yonghong Cao, Yousef Ahmed Al-Masnay, and Jean Claude Nizeyimana. "An Integrated Approach to Assess the Environmental Impacts of Large-Scale Gold Mining: The Nzema-Gold Mines in the Ellembelle District of Ghana as a Case Study." International Journal of Environmental Research and Public Health 18, no. 13 (2021): 7044. http://dx.doi.org/10.3390/ijerph18137044.

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The mining industry is a significant asset to the development of countries. Ghana, Africa’s second-largest gold producer, has benefited from gold mining as the sector generates about 90% of the country’s total exports. Just like all industries, mining is associated with benefits and risks to indigenes and the host environment. Small-scale miners are mostly accused in Ghana of being environmentally disruptive, due to their modes of operations. As a result, this paper seeks to assess the environmental impacts of large-scale gold mining with the Nzema Mines in Ellembelle as a case study. The study employs a double-phase mixed-method approach—a case study approach, consisting of site visitation, key informant interviews, questionnaires, and literature reviews, and the Normalized Difference Vegetation Index (NDVI) analysis method. The NDVI analysis shows that agricultural land reduced by −0.98%, while the bare area increases by 5.21% between the 2008 and 2015 periods. Our results show that forest reserves and bare area were reduced by −4.99% and −29%, respectively, while residential areas increased by 28.17% between 2015 and 2020. Vegetation, land, air, and water quality are highly threatened by large-scale mining in the area. Weak enforcement of mining policies, ineffective stakeholder institution collaborations, and limited community participation in decision-making processes were also noticed during the study. The authors conclude by giving recommendations to help enhance sustainable mining and ensure environmental sustainability in the district and beyond.

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Journal articles on the topic 'Ghana Chamber of Mines'

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