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Tesis sobre el tema "Small-scale miners"

Autor: Grafiati
Publicado: 25 de julio de 2024
Última modificación: 26 de julio de 2024

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1

Caballero, Evelyn. "Gold from the gods : traditional small-scale miners in the Philippines." Thesis, Quezon City : Giraffe Books, 1996. http://hdl.handle.net/10125/9338.

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2

Siegel, Shefa. "The needs of miners: political ethics, mercury abatement, and intervention in artisanal gold mining communities." Thesis, University of British Columbia, 2007. http://hdl.handle.net/2429/435.

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This dissertation examines the role of donor-funded international projects to reduce mercury pollution from artisanal and small-scale gold mining (ASM). ASM is the second largest source of anthropogenic global mercury pollution, accounting for roughly 1000tonnes of atmospheric emissions and releases to the environment per annum. The artisanal mining economy involves 10-15 million people across the developing world, and supports 80-100 million people directly and indirectly. In 2003 the Governing Council of the United Nations Environment Program reached consensus that there is sufficient scient
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3

Elgazali, Abdelkarem Abdullah Saad. "Evaluation of occupational and environmental exposure to mercury among dental amalgam and chlor-alkali workers in Pakistan and among small-scale gold miners in Cambodia, Burkina Faso, Chile and Sudan." Thesis, University of Aberdeen, 2013. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=210228.

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Mercury is a well-known toxic element which can be taken up into the human body in different forms, causing particular harm to the nervous system. Despite this fact, it is still used widely in industrial processes, with chlor-alkali electrolysis one of the most extensive pollution sources of mercury. Though most industries today use mercury-free processes, some chlor-alkali factories still use the mercury process, especially in less developed countries. In addition, small-scale gold mining activity remains the largest global mercury consumer and continues to increase the use of mercury given t
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4

Mkubukeli, Zandisile. "Challenges and prospects for small-scale mining entrepreneurs in South Africa." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2047.

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Thesis (MTech (Business Administration))--Cape Peninsula University of Technology, 2016.<br>Small-scale mining entrepreneurs are confronted with a variety of challenges during both the start-up and growth phase of their businesses not only in South Africa, but all over the world. Most small-scale mining entrepreneurs are not able to take advantage of the opportunities that are available to them. This retards the growth of their businesses. The aim of this study was to investigate the challenges and prospects for small-scale mining entrepreneurs in South Africa, the support structures available
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5

Joubert, Barend Daniel. "Small-scale gold mining in southern Africa." Thesis, Rhodes University, 1992. http://hdl.handle.net/10962/d1005615.

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The general characteristics of gold deposits are reviewed, and a classification of gold deposits based on mineability is proposed. Evaluation, mlnlng and beneficiation methods are briefly discussed. It is concluded that the most viable targets for small-scale companies comprise deposits that require the least pre-production time and expense. Great potential exists for the small-scale reclamation of gold from tailings dumps and abandoned mines in Southern Africa. There is also potential for developing new smallscale gold mines in the Archaean greenstone terranes of the Zimbabwean and Kaapvaal c
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6

Seccatore, Jacopo. "Gestão sustentável de recursos e reservas para mineração a pequena escala." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-24042015-145743/.

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Um dos maiores desafios para a mineração no Novo Milênio é a integração da Pequena Mineração no sistema ativo e sustentável de exploração dos recursos minerais. A Pequena Mineração (PM) é uma atividade de mineração definida por baixas despesas e receitas de capital e baixa produtividade. A Mineração Artesanal (MA) é apenas um subconjunto de PM, caracterizada pela mecanização rudimentar, recuperação ineficiente, condições operacionais inseguras e exploração do trabalho. Essa tese pretende demonstrar as seguintes questões de pesquisa: 1) A PM pode ser sustentável? 2) Se sim, como pode ser avalia
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7

Bouwer, Wendy. "An environmentally sound gold recovery process for small-scale gold mining." Thesis, Cape Technikon, 1999. http://hdl.handle.net/20.500.11838/869.

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Thesis(MTech (Chem.Eng.Technology))--//Cape Technikon, 1999<br>The gold mining industry has mainly relied upon the use of a highly polluting chemicals, such as mercury and cyanide, to recover gold from its ores. As environmental legislation has become more stringent in all countries and environmental protection has become the focus of world-wide research, development of environmental sound processes has been favoured. The Coal Gold Agglomeration (CGA) process is such a process which was developed some years ago and has the advantage in that gold is recovered by a procedure which has little or
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8

Mooney, David G. "An evaluation of small scale open cast mining of UG2 in the Bushveld complex." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005555.

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The current weak state of the platinum market, as well as the large inventory of platinum group metals held by Russia, necessitates that the South African platinum mining industry must carefully evaluate the benefits and disadvantage of small-scale mining of shallow, open castable ore resources. Until the late 1980's, these resources were ignored due to the metallurgical complexities of treating oxidized ore, as well as the mind set that existed within the South African mining industry which militated against open cast mining in the Bushveld. During the latter part of the 1980's and early 1990
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9

McGill, Jeannette Elizabeth. "Technical risk assessment techniques in mineral resources management with special reference to the junior and small-scale mining sectors." Pretoria : [s.n.], 2005. http://upetd.up.ac.za/thesis/available/etd-02092006-124915.

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10

Furniss, Allison. "“Je Cherche La Vie!”: Women's Labour Politics in Masisi's Artisanal Coltan Mines." Master's thesis, Faculty of Humanities, 2021. http://hdl.handle.net/11427/33895.

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In considering how women navigate the complexity and gendered aspects of the artisanal mining industry, this study seeks to unpack women's labour at step one of the global supply chain of coltan, in the post-conflict context of eastern Democratic Republic of Congo (DRC). Female miners are largely excluded from mine work by blurry regulatory frameworks, gendered social norms and financial disparities, however they manage to remain active labourers in the artisanal mining industry. Within a broader socio-political context of poverty, political instability and rural livelihoods, women maintain ac
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11

Araujo, Carlos Henrique Xavier. "Análise da inserção da mineração em pequena escala no planejamento urbano em quatro regiões metropolitanas no estado de São Paulo." Universidade de São Paulo, 2018. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-16072018-082523/.

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O estado de São Paulo é o maior consumidor de agregados minerais do Brasil e está entre os maiores produtores destes bens minerais com uma produção voltada principalmente para construção civil, indústria e agricultura. Tendo-se em vista a relevância da mineração, o presente trabalho tem como objetivo caracterizar como a mineração de pequeno porte de areia e brita tem participado no planejamento urbano em regiões metropolitanas, utilizando como exemplo quatro regiões metropolitanas no estado de São Paulo e o Plano de Desenvolvimento Urbano Integrado (PDUI) de cada uma delas. Neste trabalho foi
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12

Hardy, Dallin Max. "Sensory Acceptability and Nutrient Stability in Micronutrient-Fortified Soymilk Prepared in Small-Scale Batch Processes." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/8284.

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Fortified and unfortified soymilk were produced from the same production batches for comparative evaluation. Fortification included a comprehensive array of micronutrients of interest to community and humanitarian nutrition programs. The effects of time after fortification prior to cooling, cooling method, and light or dark refrigerated storage on the stability of 5 vitamins (vitamin A, vitamin C, thiamine, riboflavin, and folate) were investigated for both fortified and unfortified soymilk. Significant vitamin C loss (6%) and mild vitamin A isomerization occurred while soymilk was hot immedia
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13

McQuilken, James. "Small-scale mining and production networks in sub-Saharan Africa : reconceptualising a framework for 'pro-poor' ethical mineral certification." Thesis, University of Surrey, 2018. http://epubs.surrey.ac.uk/848629/.

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In rural sub-Saharan Africa, tens of millions of people engage in artisanal and small-scale mining (ASM), low-tech, labour-intensive mineral extraction and processing. Working in precarious conditions, these – mostly-impoverished – operators are deeply embedded at the base of global networks of production that supply significant quantities of the world’s minerals and construction materials, including upwards of 20 per cent of global gold and diamonds production each year. But constrained by mineral governance frameworks and an ‘opportunity structure’ that is found to prioritise the development
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14

Tichauer, Ricardo Marcelo. "Matriz de priorização aplicada à pesquisa mineral na pequena mineração." Universidade de São Paulo, 2016. http://www.teses.usp.br/teses/disponiveis/3/3134/tde-20012017-162427/.

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Na mineração, grande parte das incertezas e riscos estão associados à caracterização geológica. A adoção das melhores práticas na pesquisa mineral resulta em menor risco e maiores eficácia e eficiência à operação, agregando valor ao empreendimento. No Brasil, em geral, a mineração em pequena escala emprega poucos recursos para a pesquisa mineral, e as melhores práticas são frequentemente ignoradas. Este trabalho aborda a incerteza geológica na mineração e como as melhores práticas de pesquisa mineral podem ser aplicadas na pequena mineração para diminuir riscos e incorporar valor ao projeto. A
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15

Terlien, Damien. "A social and economic impact assessment of the South African mineral and petroleum resources development act on the small-scale diamond mining sector." Master's thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/7971.

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Includes bibliographical references.<br>The small-scale mining (SSM) sector in South Africa has been overshadowed by the wealth generating capacity of the formal mining industry. To address the disparity between the SSM sector and the large formal mining industry, a number of government initiatives have been introduced, the latest being the preparation of the Minerals and Petroleum Resources Development Act 28, which was finalized in October 2002. The Act, which has not yet been implemented, is expected to redress some of the sector's current obstacles. Two case studies conducted in the Northe
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16

Gunson, Aaron James. "Mercury and artisanal and small-scale gold miners in China." Thesis, 2004. http://hdl.handle.net/2429/15274.

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This thesis determines that over four hundred thousand artisanal and small-scale gold miners all over China systematically use amalgamation and release approximately 240 tonnes of mercury per annum. Artisanal and small-scale gold mining (ASGM) is one of the largest sources of mercury pollution in China. This thesis outlines an approach to investigating ASGM in China based on a series of three studies. The main findings of the thesis were that ASGM and amalgamation are widespread in China, and that mercury releases from ASGM have serious health and environmental impacts on the miners themselves
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17

Scoble, Jemma. "Adapting economic games for organisation of artisanal and small scale gold miners in Tanzania." Thesis, 2006. http://hdl.handle.net/2429/18143.

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This thesis analyses cooperation and trust as key components of organization in artisanal and small-scale mining. Significant economic, health and social issues are associated with artisanal and small-scale mining (ASM) activities. Work conducted as part of the GEF/UNDP/UNIDO Global Mercury Project has illuminated opportunities to improve the situation for artisanal and small-scale miners and their communities through enhanced organizational structures. Improvements in organization can present opportunities for groups of miners to access technology and finance, conduct work that is safe and in
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18

Manzi, Brighton. "Role of state-owned development finance institutions in fostering environmental compliance by small-scale miners in South Africa." Thesis, 2017. https://hdl.handle.net/10539/25119.

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A research report submitted to the Faculty of Science, University of Witwatersrand, Johannesburg in partial fulfilment of the requirements for the degree of Master of Science (Environmental Science). Johannesburg, 2017.<br>South Africa’s SDFIs have potential to play a critical role in fostering environmental compliance in the mining industry. Their role is particularly important in the small-scale and junior mining sector which is usually shunned by private finance institutions because of high environmental credit risk. Equipped with knowledge and experience of working with clients across diff
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19

Rivera-Sotelo, AIDA-SOFIA. "INTERROGATING SUSTAINABLE DEVELOPMENT: A CASE STUDY OF LARGE-SCALE MINING IN COLOMBIA." Thesis, 2012. http://hdl.handle.net/1974/7494.

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In this thesis, I examine the case of the Canadian-based multinational mining corporation GreyStar resources Ltd. in Colombia. Angosturas is GreyStar’s large-scale gold mining project in the sensitive wet highland of páramo de Santurbán in the northeast of the Andes. Although GreyStar has undertaken explorations in this area since 1994, Colombia’s Ministry of Environment denied the environmental license to the company to start with extractions in 2011. I suggest that the government’s decision must be understood in the context of massive mobilizations against the project in large cities such as
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20

Chitsike, Tichafa. "A mineral rights policy framework for promoting the small-scale mining industry in South Africa." Thesis, 1998. http://hdl.handle.net/10539/22503.

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A project report submitted to the Faculty of Engineering, University of the Witwatersrand, Johannesburg, in partial fulfillment of the requirements for the degree of Master of Science in Engineering.<br>This study addresses a principal issue associated with the small-scale mining industry in South Africa, namely mineral rights. Firstly it defines a small-scale mine and its role in the South African economy. It then examines the current mineral rights policy and the conditions under which the current mineral rights policy could be reformed in order to encourage the growth of the small-sca
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21

Drake, Jessica Alanna. "Managing the mixing : assessing mine soils with enhanced small-scale variation as part of mine rehabilitation activities." Phd thesis, 2013. http://hdl.handle.net/1885/109696.

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Small-scale variation (SSV) of mine soils is enhanced by stripping, mixing and stockpiling of materials. Soils with enhanced variation are difficult to assess, causing misleading results that indirectly affects mine rehabilitation outcomes. This thesis aims to determine if standard soil chemical and biological methods are applicable in the assessment of enhanced SSV mine soils from Barrick (Cowal) Gold mine. Mine soils are firstly discussed in context of rehabilitation. Rehabilitating mine sites involves ecosystem engineering, in which landscape, function, structure and composition are essenti
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22

Naidoo-Vermaak, Melanie. "The impacts of small scale artisanal diamond mining on the environment." Thesis, 2009. http://hdl.handle.net/10210/2391.

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M.A.<br>This mini-dissertation establishes the extent to which small scale artisanal diamond mining impacts on the environment. There has, in the past, been research undertaken specifically on the water related impacts of small scale artisanal diamond mining. This study however, looks at the environment holistically, and gauges the total degradation to the receiving environment. Small scale artisanal diamond mining is considered to be a major contributor to the local economy and improved quality of life for the communities participating in this mining and is being actively supported through th
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23

Magodi, Rofhiwa. "Assessment and management of environmental and socio-economic impacts of small-scale gold mining at Giyani Greenstone Belt." Diss., 2017. http://hdl.handle.net/11602/893.

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MENVSC (Geography)<br>Department of Geography and Geo-Information Science<br>Artisanal and small-scale gold mining (ASGM) has devastating impacts on different parts of the environment and is a source of environmental degradation and contamination. ASGM degrades water resources, contaminate soil, sediments and water and lead to serious land degradation problems. ASGM activities are also associated with socio-economic issues such as child labour, prostitution and health and safety concerns. Insufficient understanding of the environmental and social problems of ASGM in Giyani Greenstone Belt has
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24

Marriott, Anna. "Extending health and safety protection to informal workers : an analysis of small scale mining in KwaZulu-Natal." Thesis, 2006. http://hdl.handle.net/10413/2198.

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This study explores the potential extension of occupational health and safety to informal small scale miners in South Africa. It was motivated by an understanding of the integral but much neglected relationship between the quality of work and the goals of poverty reduction and economic development. The study recognises that poor working conditions can reduce productivity and that work-related injury or illness is an unaffordable risk for those working without access to adequate social protection. Further, the protection of labour standards, including work health and safety, is an established b
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25

Tshabalala, Isaac. "Strategies for stimulating socio-economic growth from small-scale mining operations in Qwaqwa (South Africa)." Thesis, 2008. http://hdl.handle.net/10413/8161.

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The socio-economic importance of small-scale mining in a developing country such as South Africa cannot be overstated. Millions of rural people trapped in abject poverty and disappointingly high unemployment, where the availability and accessibility to natural resources like sandstone is at their doorstep should never be allowed to remain poor and starve if job creation and poverty alleviation take precedence in both local and national agendas. It is against this backdrop that this pilot case study was initiated, the primary objective of which was to recommend tailor-made strategies for develo
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26

McGill, Jeannette Elizabeth. "Technical risk assessment techniques in Mineral Resource Management with special reference to the junior and small-scale mining sectors." Diss., 2005. http://hdl.handle.net/2263/27609.

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The junior and small-scale mining sectors in South Africa play an important role in the livelihoods of numerous communities. Mining is an opportunity, in the post-1994 democratic era, for many individuals to obtain access to much required empowerment and socio-economic development. These sectors are, however, not without numerous characteristics that pose problems for operators, legislators, and other role-players. Mining is inherently risky, with operators experiencing numerous difficulties throughout the life of mine. This critical analysis provides understanding relating to the junior and s
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27

Rembuluwani, Ndivhudzanyi. "Development of an integrated approach of dealing with challenges of selected small-scale rock aggregate mines in Vhembe District, Limpopo Province, South Africa." Diss., 2016. http://hdl.handle.net/11602/829.

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28

Barroso, Leonardo Santana. "Pesquisa mineral de pegmatitos na região leste de Minas Gerais em contexto de mineração de pequena escala." Master's thesis, 2019. http://hdl.handle.net/1822/64789.

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Dissertação de Mestrado em Geociências (Especialização em Valorização de Recursos Geológicos)<br>O trabalho dedica-se à Prospecção e Pesquisa Mineral de pegmatitos na região leste de Minas Gerais- Brasil, em contexto de Mineração de Pequena Escala (MPE). Foram investigados 811 depósitos pegmatíticos (minas e garimpos), cadastrados pelo Projeto Leste (1998). Os jazigos descritos foram contextualizados com os Cenários de Geologia e Mineração, do Projeto de Ordenamento Territorial Geomineiro (2008) e, posteriormente, submetidos à análise de critérios de avaliação, que culminaram na seleção de 78
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