Search for dissertations about: "artisanal mining"

Found 5 swedish dissertations containing the words artisanal mining.

  2. 1. Gold, Coal and Iron : Essays on Industrialization and Economic Development

    Author : Adrian Poignant; Niklas Bengtsson; Mounir Karadja; Ola Olsson; Uppsala universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; electricity; female employment; labor supply; artisanal mining; agriculture; displacement; industrialization; industrial revolution; Economics; Nationalekonomi;

    Abstract : Essay I: How does electricity provision affect female employment? In theory, electrical household appliances can save labor in domestic production and divert it to the market. However, the empirical evidence has been inconclusive. READ MORE

  4. 2. Characterization of Gold Pathfinder Minerals

    Author : Gabriel Kofi Nzulu; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this Thesis, I investigate the properties of artisanal small-scale gold mining concentrate samples from the Kubi Gold Project of the Asante Gold Corporation near Dunkwa-on-Offin in the Central Region of Ghana with a material science perspective.X-ray diffraction (XRD) is used to identify SiO2 (quartz), Fe3O4 (magnetite), and Fe2O3 (hematite) as the main indicator minerals in the mining site while contributions from pyrite, arsenopyrites, iridosmine, scheelite, tetradymite, garnet, gypsum, and other sulfate minerals were insignificant. READ MORE

  5. 3. Characterization of Pathfinders and Indicators of Gold

    Author : Gabriel Kofi Nzulu; Martin Magnuson; Per Eklund; Hans Högberg; Farid Akhtar; Linköpings universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Pathfinder; Indicator; Gold; Hydrothermal; X-ray; Diffraction; Kubi; Ghana;

    Abstract : Research on natural minerals and their chemical bonding to economically critical raw materials is a viable industrially relevant research area due to its increasing demand. Meeting demands requires fast, robust, and efficient techniques to explore new ore deposits and continuous operation of active mines as well as recycling. READ MORE

  6. 4. Environmental, Resource and Health Impacts of Hard Materials

    Author : Anna Furberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; MFA; life cycle assessment; material flow analysis; cemented carbide; disability-adjusted life years; LCA; DALY; hard metal; tire stud;

    Abstract : The importance of hard materials for society is illustrated by the fact that entire historical time periods have been named after the predominant hard material used at that time. In the latest century, the introduction of the hard material cemented tungsten carbide with cobalt (WC-Co) has contributed to the economic growth we have seen and this material is crucial for the manufacturing industry of today. READ MORE

  7. 5. Essays on Economics of Natural Resource Management and Experiments

    Author : Wisdom Akpalu; Göteborgs universitet; []
    Keywords : SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Optimal taxation; Efficiency; Externality; Dynamic analysis; Firm behaviour; Fishery; Regulatory compliance; Common pool resources; Experiment; Ostracism; Contribution norm; Public goods; Ghana;

    Abstract : This thesis has five self-contained essays. The titles and the abstracts of the various essays are as follows. Paper 1: Natural Resource use Conflict: Gold Mining in Tropical Rainforest in Ghana: Gold is frequently mined in rainforests that can provide either gold or forest benefits, but not both. READ MORE