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Relevant bibliographies by topics / Gold and gold mining

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Dissertations / Theses

Academic literature on the topic 'Gold and gold mining'

Author: Grafiati

Published: 29 July 2024

Last updated: 31 July 2024

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Dissertations / Theses on the topic "Gold and gold mining"

1

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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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

Tran, Dung Trung. "Gold-containing bimetallicnanoparticles." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/1362/.

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This thesis describes computational studies, syntheses and characterization of Cu-Au, Pd-Au, and Pt-Au bimetallic nanoparticles. The computational methodology is a combination of a genetic algorithm coupled with an empirical potential and density functional theory, which is used to study theoretically the geometrical structure, chemical configuration, and electronic properties of 38 atom Cu-Au and 40-atom Pt-Au nanoparticles. Experimental Cu Au and Pt-Au nanoparticles are synthesized by wet-chemical methods: the two-phase method combined with a galvanic exchange procedure (dodecanethiol-stabil

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4

Morse, Kathryn Taylor. "The nature of gold : an environmental history of the Alaska/Yukon gold rush /." Thesis, Connect to this title online; UW restricted, 1997. http://hdl.handle.net/1773/10468.

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5

Mather, Diarmid John. "An approach to analyzing gold supply from the South African gold mines." Thesis, Rhodes University, 1995. http://hdl.handle.net/10962/d1002750.

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The gold mining fIrm in South Africa is viewed as a normal fIrm producing gold bearing ore but faced with a quality constraint (grade). Grade, however, is never uniformly distributed in a metalliferous deposit and because high grades are mined fIrst, the quality constraint becomes increasingly severe with cumulated production. The fIrm will continue to mine gold bearing ore until it reaches its mining limit where the marginal cost of recovering the gold is equal to the marginal revenue received from that gold and at that point the economic deposit becomes exhausted. Because the mining limit is

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6

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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7

Ackley, Mary. "Evaluating Environmental Risks in Mining: a Perceptual Study." ScholarWorks @ UVM, 2008. http://scholarworks.uvm.edu/graddis/7.

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Gold mining is often associated with positive economic benefits; however, it may also have negative impacts on the environment and human health. It is essential that communities understand the risks and benefits associated with mining, particularly in developing countries where there is often a lack of legislation governing the environmental performance of mining corporations. The perceptions of local people regarding the risks and benefits of mining may differ significantly from those of company representatives, policy makers, and the scientific community. Indeed, public concerns have

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8

Mann, P. L. "Surficial placer gold deposits." Thesis, Rhodes University, 1994. http://hdl.handle.net/10962/d1018245.

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This review summarises the factors which control the formation and distribution of surficial gold placer deposits. Regional tectonic and climatic conditions as well as gold source are considered. The characteristics of eluvial, alluvial, marine, glacial and fluvioglacial gold placer deposits are described. Particular attention is paid to the gold grains within these placers. These gold grains have a distinctive morphology and chemical composition which reflect the manner in which they were transported, deposited and concentrated within the placers. The knowledge of the processes which lead to

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9

Vermeulen, Nicolaas Johannes. "The composition and state of gold tailings." Pretoria : [s.n.], 2006. http://upetd.up.ac.za/thesis/available/etd-03102006-122937/.

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10

Xiao, Jie 1964. "Testing a new gold centrifugal concentrator." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=20932.

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A new gold centrifugal concentrator, the Falcon SuperBowl, was tested both at plant and laboratory scales to assess its ability to recover gold from grinding circuits.<br>The performances of a 21-in SuperBowl (SB21) at Mineral Hill and New Britannia Mines showed that it could recover gravity recoverable gold (GRG) of all sizes, especially below 25 mum at Mineral Hill Mine.<br>Three types (to test the effect of gangue density and size distribution) of synthetic feeds were used to characterize a laboratory 4-in SuperBowl (SB4) as a function of feed rate and fluidization water flow rate.<br>A 20-

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