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Relevant bibliographies by topics / Postmasburg (South Africa)

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Dissertations / Theses
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Academic literature on the topic 'Postmasburg (South Africa)'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 February 2022

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Journal articles on the topic "Postmasburg (South Africa)"

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Gutzmer, Jens, and Nicolas J. Beukes. "Karst-hosted fresh-water Paleoproterozoic manganese deposits, Postmasburg, South Africa." Economic Geology 91, no. 8 (1996): 1435–54. http://dx.doi.org/10.2113/gsecongeo.91.8.1435.

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Zheng, Hong. "Refinement of an Amesite-2H1 Polytype from Postmasburg, South Africa." Clays and Clay Minerals 45, no. 3 (1997): 301–10. http://dx.doi.org/10.1346/ccmn.1997.0450301.

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Wehner, Todd, James McCreight, Roger Ellis, and Mariana Jooste. "Germplasm Expedition to Collect Wild Cucurbits in the Republic of South Africa." HortScience 32, no. 3 (1997): 495D—495. http://dx.doi.org/10.21273/hortsci.32.3.495d.

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A germplasm expedition was organized to collect seeds in the Republic of South Africa. There was an abundance of wild cucurbits there in 1996 because of an unusually rainy summer. Southern Africa is a major center of diversity for melons of Cucumis and Citrullus, and there were many plants with mature fruits along roadsides, and in other areas that had been recently disturbed. The team met in Johannesburg on 25 Apr. 1996, and covered 4213 km (passing through 35 cities and towns) located in four provinces in the northern half of the country. The expedition passed through Pretoria, Potgietersrus

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Gutzmer, J., and N. J. Beukes. "Mineralogy and mineral chemistry of oxide-facies manganese ores of the Postmasburg manganese field, South Africa." Mineralogical Magazine 61, no. 405 (1997): 213–31. http://dx.doi.org/10.1180/minmag.1997.061.405.05.

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AbstractThe diagenetic to very low-grade metamorphic manganese ores of the Postmasburg manganese field provide a unique example of oxide-facies manganese ores in a Palaeoproterozoic palaeokarst setting. The ores are composed mainly of braunite group minerals, including braunite, partridgeite and bixbyite, with rare braunite II and Ca-poor, silica-depleted braunite. Iron-poor partridgeite is distinguished from Fe-rich bixbyite and the occurrence of Ca-poor, silica-depleted braunite is reported for the first time. Braunite and partridgeite formed during early diagenesis but remained stable under

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von Plehwe-Leisen, E., and D. D. Klemm. "Geology and ore genesis of the manganese ore deposits of the Postmasburg manganese-field, South Africa." Mineralium Deposita 30, no. 3-4 (1995): 257–67. http://dx.doi.org/10.1007/bf00196361.

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Fairey, Brenton, Harilaos Tsikos, Fernando Corfu, and Stéphane Polteau. "U–Pb systematics in carbonates of the Postmasburg Group, Transvaal Supergroup, South Africa: Primary versus metasomatic controls." Precambrian Research 231 (July 2013): 194–205. http://dx.doi.org/10.1016/j.precamres.2013.03.010.

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Varentsov, I. M., and V. N. Kuleshov. "Rare Elements—Markers of the Formation Setting of Manganese and Iron Ores in the Kalahari and Postmasburg Manganese Fields (South Africa): Communication 2. Postmasburg Iron and Manganese Field." Lithology and Mineral Resources 54, no. 5 (2019): 412–28. http://dx.doi.org/10.1134/s0024490219050067.

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Costin, Gelu, Brenton Fairey, Harilaos Tsikos, and Arnold Gucsik. "Tokyoite, As-Rich Tokyoite, and Noélbensonite: New Occurrences From the Postmasburg Manganese Field, Northern Cape Province, South Africa." Canadian Mineralogist 53, no. 6 (2015): 981–90. http://dx.doi.org/10.3749/canmin.1500063.

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Cairncross, Bruce. "The Where of Mineral Names: Gamagarite, Gloucester Mine, Gamagara Hills, Postmasburg Manganese and Iron-Ore Field, South Africa." Rocks & Minerals 94, no. 3 (2019): 280–85. http://dx.doi.org/10.1080/00357529.2019.1567231.

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Varentsov, I. M., and V. N. Kuleshov. "Rare elements — setting markers of the formation of the manganese and iron ore deposits of Kalahari and Postmasburg areas (South Africa). Communication 2. Iron- and manganese ore of Postmasburg area." Литология и полезные ископаемые, no. 5 (October 20, 2019): 466–85. http://dx.doi.org/10.31857/s0024-497x20195466-485.

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In the world resources of manganese and iron ores, a significant place belongs to the Postmasburg ore field (South Africa), enclosed in rocks of the Transvaal Supegroup. Ore deposits have the nature of karst residual accumulations. A number of elements (B, Cr, Ni, Zn, Ge, As, Se, Mo, Ag, Cd, Sb, Te, W, Pb, REE) form a characteristic association that sheds light on the geochemistry of the ore formation processes. Of these, the most representative elements are: Mo, As, Ag and REE. Molybdenum is distinguished by the chemisorption incorporation nature of accumulation in the ores under consideratio

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Dissertations / Theses on the topic "Postmasburg (South Africa)"

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Kalonji, Kabasele Muboyayi Hubert. "Demographic profile of pregnant HIV-positive women in Postmasburg, South Africa." Thesis, University of Limpopo (Medunsa Campus), 2011. http://hdl.handle.net/10386/449.

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Thesis (MPH)--University of Limpopo (Medunsa Campus), 2011.<br>Background: South Africa hosts the largest number of pregnant HIV-positive women, accounting for almost 15% of the global total. Many amongst these HIV-positive pregnancies are unplanned and may be related to reproductive unmet needs, sexual risky behaviours, and/or community, contextual and individual factors that may determine and/or make these HIV-infected women to fall pregnant. The occurrence of an HIV-positive pregnancy in our region implies however the practice of unprotected sex, and is associated with the risk of reinfecti

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Crawhall, Nigel T. "!Ui-Taa language shift in Gordonia and Postmasburg Districts, South Africa." Doctoral thesis, University of Cape Town, 2004. http://hdl.handle.net/11427/7430.

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Includes bibliographical references (leaves 338-359).<br>This dissertation presents a case study of the demise of !Ui-Taa languages in South Africa during the 20th century, with particular attention to N|u, the last surviving variety. The geographic focus is on Gordonia and Postmasburg Districts in the Northern Cape province. Drawing on the work of Diamond (1998), the author argues that food producing peoples (agriculturalists / pastoralists / colonialists) typically penetrate the hunter-gatherer territory and break down the ecological setting that sustains the hunter-gatherer mode of subsiste

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Fairey, Brenton John. "Genesis of karst-hosted manganese ores of the Postmasburg Manganese Field, South Africa with emphasis on evidence for hydrothermal processes." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1020904.

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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 dol

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Swart, Quentin Dax. "Carbonate rocks of the Paleoproterozoic Pretoria and Postmasburg Groups, Transvaal Supergroup." Thesis, 2012. http://hdl.handle.net/10210/6946.

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M.Sc.<br>Certain carbonate bearing formations in the Paleoproterozoic Pretoria Group and its Griqualand West equivalent exhibit remarkable geochemical and stable isotopic signatures. The 8'3Ccarb isotopic signatures from the Duitschland and Silverton Formations exhibit large positive excursions, which seemingly coincide with a significant increase in atmospheric oxygen between 2.4 and 2.0 Ga. The Duitschland Formation with its distinctive basal unconformity is composed primarily of limestone and dolomite units, interbedded with two compositionally different shale units and quartzite. Toward th

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Gutzmer, Jens. "Genesis and alteration of the Kalahari and Postmasburg manganese deposits, Griqualand West, South Africa." Thesis, 2012. http://hdl.handle.net/10210/5803.

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Ph.D.<br>The economically important sedimentary manganese deposits of the Paleoproterozoic Kalahari and Postmasburg manganese fields, are situated in close geographic vicinity to each other in the Griqualand West region of the Northern Cape Province, South Africa. This thesis describes aspects of mineralogy, petrography and geochemistry of the manganese ores with the purpose to establish genetic models for genesis and alteration of manganese ores of both manganese fields. The Kalahari manganese field, situated some 60 km northwest of Kuruman, is the largest known land-based manganese deposit.

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"Genesis and characteristics of the Wolhaarkop breccia and associated manganore iron formation." Thesis, 2009. http://hdl.handle.net/10210/1970.

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M.A.<br>Hematized iron formation known as the Manganore iron formation is slumped into sinkhole structures in the Campbellrand Subgroup, Transvaal Supergroup, on the Maremane dome. These iron deposits are underlain by manganiferous breccias known as the Wolhaarkop Breccia. Known iron and manganese deposits of this type occur in an arc from Sishen in the north to Postmasburg in the south. The area is not being mined for manganese at the moment due to the relatively high grade of the Kalahari manganese field situated to the north of this area. The iron deposits, though, are some of the richest i

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Becker, Elize. "The displacement of a Northern Cape community : an anthropological research." Diss., 2020. http://hdl.handle.net/10500/26664.

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Text in English with abstracts in English, Afrikaans and Tswana with keywords in English and Tswana<br>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 lo

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Book chapters on the topic "Postmasburg (South Africa)"

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van Rooyen, Deidré, and Johan van Zyl. "Businesses in Postmasburg." In Mining and Community in South Africa. Routledge, 2017. http://dx.doi.org/10.4324/9781315162614-17.

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Denoon-Stevens, Stuart, Verna Nel, and Thulisile Mphambukeli. "Spatial planning for Postmasburg." In Mining and Community in South Africa. Routledge, 2017. http://dx.doi.org/10.4324/9781315162614-7.

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Marais, Lochner, Fiona Haslam McKenzie, Etienne Nel, Deidré van Rooyen, and Philippe Burger. "The way forward for Postmasburg." In Mining and Community in South Africa. Routledge, 2017. http://dx.doi.org/10.4324/9781315162614-18.

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Burger, Philippe, and Jean-Pierre Geldenhuys. "Work, wages and welfare in Postmasburg." In Mining and Community in South Africa. Routledge, 2017. http://dx.doi.org/10.4324/9781315162614-15.

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Marais, Lochner, Deidré van Rooyen, Philippe Burger, et al. "The background to the Postmasburg study." In Mining and Community in South Africa. Routledge, 2017. http://dx.doi.org/10.4324/9781315162614-2.

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Stewart, Thomas, and Ernst Drewes. "The Khumani approach to homeownership in Postmasburg." In Mining and Community in South Africa. Routledge, 2017. http://dx.doi.org/10.4324/9781315162614-13.

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Buschke, Falko T., Joost Sommen, Maitland T. Seaman, and Richard D. Williamson. "Environmental legislation, mining and Postmasburg’s ecosystems." In Mining and Community in South Africa. Routledge, 2017. http://dx.doi.org/10.4324/9781315162614-10.

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