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141	Genesis of karst-hosted manganese ores of the Postmasburg Manganese Field, South Africa with emphasis on evidence for hydrothermal processes / Genesis of karst-hosted manganese ores of the Postmasburg Manganese Field and the implications of related hydrothermal activity, Northern Cape, South Africa Fairey, Brenton John January 2014 (has links) The Postmasburg Manganese Field (PMF), located in the Northern Cape Province of South Africa, once represented one of the largest sources of manganese ore worldwide. However, the discovery of the giant manganese deposits of the Kalahari Manganese Field (KMF) led to the gradual decline in manganese mining activity in the PMF. Two belts of manganese ore deposits have been distinguished in the PMF, namely the Western Belt of ferruginous manganese ores and the Eastern Belt of siliceous manganese ores. Prevailing models of ore formation in these two belts invoke karstification of manganese-rich dolomites and residual accumulation of manganese wad which later underwent diagenetic and low-grade metamorphic processes. For the most part, the role of hydrothermal processes in ore formation and metasomatic alteration is not addressed. The identification of an abundance of common and some rare Al-, Na-, K- and Ba-bearing minerals, particularly aegirine, albite, microcline, banalsite, sérandite-pectolite, paragonite and natrolite in the PMF ores studied in this thesis, is indicative of the influence of hydrothermal activity. Enrichments in Na, K and/or Ba in the ores are generally on a percentage level for the majority of samples analysed through bulk-rock techniques. The discovery of a Ba-Mn arsenate/vanadate similar to gamagarite may also indicate that the hydrothermal fluid affecting the ores was not only alkali-rich but also probably contained some As and V. The fluid was likely to be oxidized and alkaline in nature and is thought to have been a mature basinal brine. Various replacement textures, particularly of Na- and Krich minerals by Ba-bearing phases, suggest sequential deposition of gangue as well as oreminerals from the hydrothermal fluid, with Ba phases being deposited at a later stage. The stratigraphic variability of the studied ores and the deviation of their character from the pigeon-hole-type classification of ferruginous and siliceous ores in the literature, suggests that a re-evaluation of genetic models is warranted. The discovery of hydrothermallydeposited alkali-rich assemblages in the PMF and KMF provides grounding for further investigation into a possible regional-scale hydrothermal event at least re-constituting the ores. Some shortcomings in previous works include disregard for the highly variable nature of the PMF deposits, the effects of hydrothermal activity of the ores and the existence of stratigraphic discrepancies. This study provides a single, broad model for the development of all manganese deposits of the PMF. The source of metals is attributed to all formations that stratigraphically overly the Reivilo Formation of the Campbellrand Subgroup (including the Reivilo Formation itself). The main process by which metals are accumulated is attributed to karstification of the dolomites. The interaction of oxidized, alkaline brines with the ores is considered and the overlying Asbestos Hills Subgroup BIF is suggested as a potential source of alkali metals. Karst -- South Africa -- Postmasburg Petrology Mineralogical chemistry Geochemistry
142	The principal's role in the management of parent involvement in secondary schools in rural areas in Northern Province Risimati, Hasani Pius 11 1900 (has links) Dissertation / This study explores the role of the principal in the management of parent involvement in secondary schools in Northern Province. A literature study investigated existing theories and models of parent involvement; parent involvement in the South African context and the provision of education in South Africa in historical perspective. It also investigated the managerial role of the principal in parent involvement. A qualitative investigation in three secondary schools in Northern Province was done. Data were gathered by means of participant observation in-depth interviews with principals and focus-group interviews with teachers and three parents on the school governing bodies. Analysed data revealed the following findings: principals lack knowledge on parent involvement and schools lack policies and organisational structures dealing with parent involvement as well as home-school relations. As a result of these findings, there is a need to equip principals with ways in which they can involve parents in their schools. / Educational Leadership and Management / M. Ed. (Educational Management) Qualitative enquiry: In education In-depth interviews Focus-group interviews Data analysis 371.192096825 Education
143	The principal's role in the management of parent involvement in secondary schools in rural areas in Northern Province Risimati, Hasani Pius 11 1900 (has links) Dissertation / This study explores the role of the principal in the management of parent involvement in secondary schools in Northern Province. A literature study investigated existing theories and models of parent involvement; parent involvement in the South African context and the provision of education in South Africa in historical perspective. It also investigated the managerial role of the principal in parent involvement. A qualitative investigation in three secondary schools in Northern Province was done. Data were gathered by means of participant observation in-depth interviews with principals and focus-group interviews with teachers and three parents on the school governing bodies. Analysed data revealed the following findings: principals lack knowledge on parent involvement and schools lack policies and organisational structures dealing with parent involvement as well as home-school relations. As a result of these findings, there is a need to equip principals with ways in which they can involve parents in their schools. / Educational Leadership and Management / M. Ed. (Educational Management) Qualitative enquiry: In education In-depth interviews Focus-group interviews Data analysis 371.192096825 Education
144	Jah children the experience of Rastafari children in South Africa as members of a minority group with particular reference to communities in the former Cape Province Bain, Pauline January 2004 (has links) This thesis is an ethnography of Rastafari childhood in the former Cape Province, South Africa, through the eyes of both parents and children. If children are a ‘muted group’, then what are the identity formation implications for “double-muted” groups, the children of ethnic minorities whose voices are not heard? Rasta parents’ experience of the struggle, ie. the opposition to apartheid, has shaped the Rastafari chant of ‘equal rights’ and ‘justice’ into a distinctly South African form of protest and resistance. Their childhood experiences have resulted in a desire to provide a better life for their children, using Rastafari as a vehicle. This is expressed in a continuation of the struggle that was started during apartheid, in the Rasta ideology children grow up learning. The Rasta child has become a contested body in this struggle. The South African Government, through policy, has a mandate to protect the child, and legislature exists to do so in accordance with international law. However, as child-raising differs phenomenally from culture to culture, these goals on the part of the State start infringing upon the rights and freedoms of minorities to raise their children according to their own cultural goals. This study examines the tension between Rastafari and government with regards to child raising, specifically looking at the following main points of contestation: public health, public schools and policy/legislation; in order to examine how Rasta children negotiate their identity in the face of these conflicting messages and struggles. Their identity can be influenced by three main groups, the Rasta family they grow up in; school; and multi-media. What these children choose to accept or reject in their worldview is moderated by their own agency. This study shows that this tension results in a new generation of Rastafari children, who are strongly grounded in an identity as Rastafari and take pride in this identity. It also illustrates how Rastafari are impacting on and changing government policy through resistance. Their successes in challenging the state on the grounds of multiculturalism and religious freedom, has helped in the attainment of a sense of dignity. Rastafarian ethics -- South Africa Rastafari movement -- Doctrines Socialization -- South Africa
145	The displacement of a Northern Cape community : an anthropological research Becker, Elize 09 1900 (has links) Text in English with abstracts in English, Afrikaans and Tswana with keywords in English and Tswana / Displacement in the South African context is a complex and diverse phenomenon which is under-researched, particularly from the point of view of post-resettlement stress. The Meetse-a-tala community from Groenwater, Northern Cape, was resettled in 1964 and returned in 1999 to their ancestral land after a 25 year struggle to do so. The community anticipated that the land would present all the natural resources they had in 1964, but unfortunately, when they returned, the outlook seemed a lot different. / Verskuiwing in die Suid-Afrikaanse konteks is ‘n diverse en komplekse verskynsel wat nog nie voldoende nagevors is, veral vanuit die oogpunt van post-hervestigingsstres nie. Die Meetse-a-tala-gemeenskap van Groenwater in Noord-Kaap is in 1964 hervestig en het in 1999 teruggekeer na die land van hul voorouers na ‘n 25 jaarlange stryd om dit te bewerkstellig. Die gemeenskap het verwag dat die gebied weer al die natuurlike hulpbronne sou aanbied wat hulle in 1964 gehad het, maar ongelukkig, met hul terugkeer, het die vooruitsigte heel anders gelyk. / Tiragalo ya go fudusiwa ka dikgoka mo bokaong jwa Aforikaborwa e tlhagisa marara a a farologaneng ka ntlha ya dipatlisiso tse di lekanyeditsweng malebana le kgatelelo ya maikutlo e e amanang le morago ga go fudusiwa. Baagi ba Meetse-a-tala go tswa kwa Groenwater, kwa Kapabokone, ba itemogetse tiragalo ya go fudusiwa ka 1964 mme morago ga go kgaratlha dingwaga tse 25 go boela kwa lefatsheng la badimo ba bona, ba boetse ka 1999. Baagi ba ne ba solofetse gore lefatshe le tlaa ba neela ditlamelo tsotlhe tsa tlholego tse ba neng ba na natso fa ba tsamaya ka 1964, mme ka bomadimabe, e rile fa ba bowa, ba fitlhela le lebega le farologane thata. / Anthropology and Archaeology / M.A. (Anthropology) Displacement Resettlement Community Traditional leadership Leadership Community Property Association Tsantsabane Local Municipality Government Local authorities Anthropological research Social-cultural Youth Employment Post-resettlement stress Transport Electricity Basic services Symbolism Sacred Culture Meetse-a-tala Groenwater Kuruman Metsimanzi Postmasburg Groenwater Postmasburg Kuruman Phuduso ka dikgoka Phuduso baagi Boeteledipele jwa setso Boeteledipele Meetse-a-tala Metsimanzi Mokgatlho wa Baagi wa Dithoto Lekgotlatoropo la Selegae la Tsantsabane Puso Bothati jwa selegae Dipatlisiso tsa anteropoloji Setsoloago Bašwa Ditiro Dipalangwa Motlakase Ditirelo tsa motheo Bokao Boitshepo Setso 307.2096871

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