https://commons.ru.ac.za/vital/access/manager/Index ${session.getAttribute("locale")} 5 A bulk and fraction-specific geochemical study of the origin of diverse high-grade hematitic iron ores from the Transvaal Supergroup, Northern Cape Province, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:25998 Wed 12 May 2021 19:35:48 SAST ]]> A stratigraphic, petrographic and geochemical study of the gamagara formation at the maremane dome, Northern Cape province, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:20711 Wed 12 May 2021 18:56:43 SAST ]]> Genesis of BIF-hosted hematite iron ore deposits in the central part of the Maremane anticline, Northern Cape Province, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:5095 Wed 12 May 2021 17:40:33 SAST ]]> Carbonate petrography and geochemistry of BIF of the Transvaal supergroup : evaluating the potential of iron carbonates as proxies for palaeoproterozoic ocean chemistry https://commons.ru.ac.za/vital/access/manager/Repository/vital:5089 Wed 12 May 2021 17:33:31 SAST ]]> A mineralogical, geochemical and metallogenic study of unusual Mn/Na/Ba assemblages at the footwall of conglomeratic iron-ore at farm Langverwacht, Northern Cape Province of South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:28201 Wed 12 May 2021 17:17:07 SAST ]]> Mineralogy, geochemistry and origin of the Neoproterozoic Xaudum iron-formation in Botswana https://commons.ru.ac.za/vital/access/manager/Repository/vital:41447 Wed 12 May 2021 14:38:05 SAST ]]> Primary controls on iron and manganese distribution in sphalerite of the Gams Formation, Gamsberg zinc deposit, Namaqualand, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:28488 Wed 03 May 2023 13:07:26 SAST ]]> Petrography and geochemistry of the Masoke Iron Formation and its associated ferruginous counterparts, kanye basin Botswana https://commons.ru.ac.za/vital/access/manager/Repository/vital:34101 Fe. Masoke Iron Formation (Kanye Basin) which is stratigraphic correlative of The Ghaap Group and Chuniespoort Group of the Griqualand West basin and Transvaal basin, respectively. The Palaeoproterozoic Transvaal Supergroup in the Northern Cape Province of South Africa hosts high grade (>60% Fe) hematitic and specularitic iron and manganese mineralisation. It is therefore important to study and record the petrographic, mineralogy and geochemistry of Masoke Iron Formation, compare the results to the much known Kuruman and Griquatown Iron Formations. This study systematically investigate and record the petrography, mineralogy and geochemistry of all Masoke Iron Formation of Taupone Group in the Kanye Basin, which is stratigraphic correlative of The Ghaap Group and Chuniespoort Group of the Griqualand West basin and Transvaal basin, respectively. The further objective is to compare Masoke Iron Formation to the equivalent units in the Transvaal basin and Griqualand basin. In contrast to both Transvaal and Griqualand West Basin the Masoke iron Formation (Kanye Basin) has not been the subject of systematic scientific investigations. The study covers three main areas in the Kanye Basin: Keng Pan Area, Ukwi/Moretlwa hill and Janeng Hill Area. The mineralogy and geochemistry of these areas are presented in this study. Kanye Basin has a potential to host a large iron ore deposit, the geological setting in this area incorporates many of the elements necessary for iron ore formation. These include: banded iron formation (BIF), major unconformities with prolonged periods of weathering, carbonate sequences etc. In addition, several large deposits and mines are known from this area. This area can potentially have both hypogene and supergene enrichment of BIF. In this model, prospectively for new deposits is a function of the following: presence of iron formation units, proximity of mapped Asbestos Hills and Voëlwater BIF, thrust faulting (as indicated by the aero-magnetic interpretation), duplication of the ore horizon by folding, intersection of the BIF by major extensional fault, proximity of Olifantshoek/Waterberg outcrop, Gamagara unconformity, presence of carbonates (dolomites) and thin Kalahari sand cover. Major BIF units in the area of study include: the Masoke Iron Formation, equivalent to Kuruman Formation of the Asbestos Hills Subgroup, the Rooinekke iron formation of the Koegas Subgroup and the Hotazel Formation of the Voëlwater Subgroup. Supergene enrichment of these BIFs may occur wherever they are overlain by a major regional unconformity. The base of the Waterberg and the OlifantshoekSupergroups represent major unconformities in this regional target area. Potential for hypogene deposits is indicated by faulting (preferably extensional) proximal to BIF.]]> Thu 13 May 2021 07:06:47 SAST ]]> Petrography, geochemistry and origin of atypical sedimentary-igneous contact relationships at the base of the Hotazel Formation around Middelplaats, Northern Cape Province, RSA https://commons.ru.ac.za/vital/access/manager/Repository/vital:5059 Thu 13 May 2021 05:24:10 SAST ]]> Mineralogy and geochemistry of structurally-controlled metasomatic alteration of carbonate-rich manganese ore at Mamatwan Mine, Kalahari Manganese Field https://commons.ru.ac.za/vital/access/manager/Repository/vital:20715 Thu 13 May 2021 02:01:36 SAST ]]> Mineralogical and geochemical constraints on the origin, alteration history and metallogenic significance of the Manganore iron-formation, Northern Cape Province, South Africa https://commons.ru.ac.za/vital/access/manager/Repository/vital:28702 Mon 29 Jan 2024 14:44:58 SAST ]]>