Browsing by Subject "Minerals"
Now showing items 1-10 of 14
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Comparison of sintering and compressive strength tendencies of a model coal mineral mixture heat-treated in inert and oxidizing atmospheres
(Elsevier, 2011)The chemical interactions responsible for sintering in a coal mineral mixture were investigated in air and in N2. A mineral mixture was made up by mixing kaolin, pyrite, quartz, calcite, hydromagnesite, FeCO3 and anatase ... -
The constitutionality of the Mineral and Petroleum Resources Development Act 28 of 2002
(North-West University, 2006)The Mineral and Petroleum Resources Development Act 28 of 2002 (MPRDA) is premised on the principle that minerals are part of the natural heritage of all South Africans. Section 3 of the MPRDA articulates the core of the ... -
Effect of cultivar, nitrogen application rate and stage of harvesting on yield and nutritive value of perennial ryegrass (Lolium perenne L.)
(Range Management Society of India, 2016)This experiment consisted of a factorial combination of seven perennial ryegrass cultivars, two levels of nitrogen fertilizer (30 and 60 kg ha?1), and three harvesting stages (60, 75 and 90 days after planting; DAP) and ... -
Effect of different plant substrates and growth hormones on the development characteristics and nutrient content of Pleurotus ostreatus in semi-arid conditions
(North-West University (South Africa), Mafikeng Campus, 2017)With the global and local need to identify low-cost sustainable sources of protein and essential minerals for human nutrition the study was undertaken to investigate effect of different plant growth substrates and hormones ... -
Effect of sodium compounds on the sintering propensity of coal-associated minerals
(Elsevier, 2015)This study focused on the chemistry involved in sintering of coal-associated minerals during combustion and inert conditions. Changes in mechanical strength were recorded with compressive strength measurements. This method ... -
The historical development of the right to mine diamonds in South Africa
(North-West University (South Africa) , Potchefstroom Campus, 2017)This thesis is an analyses of the historical development of diamond mining legislation in South Africa. Diamond mining legislation in South Africa developed as a result of and following the discovery of diamonds. There ... -
Host communities and the award and utilisation of mineral rights in Zimbabwe
(North-West University (South Africa)., 2023)Minerals are non-renewable natural resources. Extraction of these resources leads to their exhaustion. This raises many questions, including, for instance, the involvement of host communities, access and distribution of ... -
Is the Extractive Industry Transparency Initiative (EITI) sufficient to generate transparency in environmental impact and legacy risks? The Zambian minerals sector
(Elsevier, 2016)Developing administrative and financial mechanisms to achieve transparency and compliance with legal frameworks related to mine operation and closure is a major challenge. Ensuring the appropriate level of disclosure, ... -
The liability of historical mine authorization holders for rehabilitation
(North-West University, 2009)Historically, irresponsible mining companies have escaped their duty to rehabilitate. The Mineral Petroleum Resources Development Act does not oblige mining companies to rehabilitate if their operations ceased before the ... -
Minerals, trace elements and antioxidant phytochemicals in wild African dark-green leafy vegetables (morogo)
(ASSAf, 2009)Wild African dark-green leafy vegetables (morogo) are an important constituent of the traditional starch-based African diet. Three wild morogo types were sampled from different geographical regions in South Africa to ...
