Relevant bibliographies by topics / Manganese ores – South Africa

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Manganese ores – South Africa'

Author: Grafiati
Published: 4 June 2021
Last updated: 1 February 2022

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Journal articles on the topic "Manganese ores – South Africa"

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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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Fairey, Brenton J., Martin J. Timmerman, Masafumi Sudo, and Harilaos Tsikos. "The Role of Hydrothermal Activity in the Formation of Karst-Hosted Manganese Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa." Minerals 9, no. 7 (2019): 408. http://dx.doi.org/10.3390/min9070408.

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The Postmasburg Manganese Field (PMF), Northern Cape Province, South Africa, once represented one of the largest sources of manganese ore worldwide. 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 and
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Evdokimov, Aleksandr, and Benedict Pharoe. "Features of the mineral and chemical composition of the Northwest manganese ore occurrence in the Highveld region, South Africa." Journal of Mining Institute 248 (May 25, 2021): 195–208. http://dx.doi.org/10.31897/pmi.2021.2.4.

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The Northwest manganese ore mineralisation is located at a relative distance from traditionally known manganese mining areas in a new manganese-bearing region (Highveld) in the Northwest Province, Republic of South Africa. The ore occurrence was studied on farms: Buchansvale 61 IQ, Weltevreden 517 JQ, Rhenosterhoek 343 JP and Kafferskraal 306 JP. The data obtained from studying the geology of the area pointed out to interests regarding the development criterias for search of similar ore mineralisations in the northwest region of South Africa. The ore occurs predominantly in the form of powdere
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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 1. Kalahari manganese field." Литология и полезные ископаемые, no. 4 (July 9, 2019): 364–86. http://dx.doi.org/10.31857/s0024-497x20194364-386.

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In manganese ores of the Hotazel Formation (Transvaal supergroup) of the Lower Proterozoic, associated with banded ferrous silicites, high concentrations of a number of rare elements (B, Ge, W, Mo, Cr, Ni, Zn, Cd, Pb, Ag, Bi, As, Sb, Te, Se) were determined. High boron contents in oxide-carbonate ores (manganese lutites) are considered as a consequence of the concentration by chemsorbtion of this element on Mn-carbonates. It is proposed that as a result of hydrothermal transformations, a wide range of ore-forming (mainly Fe, Mn) and rare elements (including REE) was removed from the underlying
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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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Gutzmer, J., and N. J. Beukes. "Fault-controlled metasomatic alteration of early Proterozoic sedimentary manganese ores in the Kalahari manganese field, South Africa." Economic Geology 90, no. 4 (1995): 823–44. http://dx.doi.org/10.2113/gsecongeo.90.4.823.

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Gutzmer, J., A. P. Du Plooy, and N. J. Beukes. "Timing of supergene enrichment of low-grade sedimentary manganese ores in the Kalahari Manganese Field, South Africa." Ore Geology Reviews 47 (September 2012): 136–53. http://dx.doi.org/10.1016/j.oregeorev.2012.04.003.

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Gutzmmer, J., N. J. Beukes, A. S. E. Kleyenstuber, and A. M. Burger. "Magnetic hausmannite from hydrothermally altered manganese ore in the Palaeoproterozoic Kalahari manganese deposit, Transvaal Supergroup, South Africa." Mineralogical Magazine 59, no. 397 (1995): 703–16. http://dx.doi.org/10.1180/minmag.1995.059.397.12.

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AbstractHausmannite (Mn3O4), a manganese oxide with a tetragonally distorted spinel structure, is considered to be ferrimagnetic with a very low Curie temperature of 42.5 K. However, strongly magnetic hausmannite has been discovered in some of the hydrothermally altered high-grade manganese ores of the giant Kalahari manganese deposit in South Africa. EDS-electron microprobe analyses indicate magnetic hausmannite to contain on average between 3 and 11.3 wt.% Fe2O3. In contrast non-magnetic hausmannite contains on average about 1–3 wt.% Fe2O3. X-ray powder diffraction analyses reveal small chan
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Armbruster, T., E. Gnos, R. Dixon, et al. "Manganvesuvianite and tweddillite, two new Mn3+-silicate minerals from the Kalahari manganese fields, South Africa." Mineralogical Magazine 66, no. 1 (2002): 137–50. http://dx.doi.org/10.1180/0026461026610018.

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AbstractThe new minerals manganvesuviante and tweddillite, both formed by hydrothermal alteration of primary manganese ores, are described from the Kalahari manganese fields (Republic of South Africa). In addition, single-crystal X-ray structure refinements of both new minerals are presented.Manganvesuvianite is a tetragonal vesuvianite mineral with the simplified formula Ca19Mn3+(Al,Mn3+,Fe3+)10(Mg,Mn2+)2Si18O69(OH)9, characterized by Mn3+ occupying the five-coordinated position (square pyramid). The crystals simple prismatic forms: {100}, {110} terminated by {101} and exhibit deep maroon red
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Miyano, Takashi, and Nicolas J. Beukes. "Physicochemical environments for the formation of quartz-free manganese oxide ores from the early Proterozoic Hotazel Formation, Kalahari manganese field, South Africa." Economic Geology 82, no. 3 (1987): 706–18. http://dx.doi.org/10.2113/gsecongeo.82.3.706.

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Dissertations / Theses on the topic "Manganese ores – South Africa"

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Tsikos, Harilaos. "Petrographic and geochemical constraints on the origin and post-depositional history of the Hotazel iron-manganese deposits, Kalahari Manganese Field, South Africa." Thesis, Rhodes University, 2000. http://hdl.handle.net/10962/d1005599.

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The giant Palaeoproterozoic manganese deposits of the Kalahari manganese field (KMF), Northern Cape Province, South Mrica, have been a world renowned resource of manganese ore for many decades. In recent years, the mineralogical composition, geochemistry and genesis of these deposits have been the objects of many geological investigations, yet their origin remains contentious up to the present day. A characteristic feature of the Kalahari deposits is the intimate association of manganese ore and iron-formation of the Superior-type, in the form of three discrete sedimentary cycles constituting
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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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Rasmeni, Sonwabile. "Lithostratigraphic correlation, mineralogy and geochemistry of the lower manganese orebody at the Kalagadi Manganese Mine in the Northern Cape Province of South Africa." Thesis, University of Fort Hare, 2012. http://hdl.handle.net/10353/d1016155.

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The Kalagadi Manganese mine in the Kuruman area of the Northern Cape Province of South Africa contains reserves of Mn ore in excess of 100Mt. Mineralization in the mine lease area is restricted within the Hotazel Formation of the Voȅlwater Subgroup, belonging to the Postmasburg Group, the upper subdivision of the Transvaal Supergroup. Surface topography is characterized by flat lying, undulation with minimal faulting and the ore are slightly metarmophosed. This study investigates the general geology of the mine, lithostratigraphic subdivision and correlation of the economic Lower Manganese Ore
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Terracin, Matthew Theodore. "Petrography, geochemistry and origin of atypical sedimentary-igneous contact relationships at the base of the Hotazel Formation around Middelplaats, Northern Cape Province, RSA." Thesis, Rhodes University, 2014. http://hdl.handle.net/10962/d1012985.

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In the Middelplaats mine area of the Kalahari manganese field, two drill holes (MP53 and MP54) intersected anomalously high-grade manganese ore sitting stratigraphically just above an igneous body (likely a dike or sill). Manganese ore located within approximate 5 meters of the contact with the underlying igneous rocks has been substantially metasomatically upgraded from 25 percent manganese, to over 40 percent whilst the dominant manganese species within the ore has been altered to hausmannite. This report demonstrates the metasomatic alteration is related to devolatilization (removal and/or
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Polteau, Stéphane. "The early proterozoic Makganyene glacial event in South Africa : its implication in sequence stratigraphy interpretations, paleoenvironmental conditions and iron and manganese ore deposition." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1007612.

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The Makganyene Formation forms the base of the Postmasburg Group in the Transvaal Supergroup in the Griqualand West Basin. It consists of diamictites, sandstones, banded iron-formations (BIFs), shales, siltstones and carbonates. It is generally accepted that the Makganyene Formation rests on an erosive regional unconformity throughout the Northern Cape Province. However this study demonstrates that this stratigraphic relationship is not universal, and conformable contacts have been observed. One of the principal aims of this study is to identify the nature of the Makganyene basal contact throu
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MacGregor, Duncan Graeme. "Manganese deposits of the Cape Peninsula, South Africa." Master's thesis, University of Cape Town, 2013. http://hdl.handle.net/11427/6614.

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The outcrops, petrography and geochemistry of manganese deposits were studied at several sites on the Cape Peninsula (Skeleton Gorge, Kasteelpoort Path, Kommetjie and Hout Bay) as well as at Rooi Els on the opposite side of False Bay. The purpose of this study was to understand the origin and depositional history of these manganese deposits. Manganese ore samples contain between 16 and 86 wt% MnO, 0.3 to 29 wt% Fe2O3 , 1.2 and 5.6 wt% K2O and a P2O5 content of 0.3 to 1.8 wt%. The primary manganese oxide mineral present is cryptomelane (KMn8O16). The iron and quartz content of bulk rock samp
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Whitfield, Derek. "The genesis and controls of gold mineralization south of Rehoboth, Namibia." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1005560.

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Gold mineralization is hosted within gossanous quartz-haematite veins in volcano-sedimentary lithologies of the Klein Aub - Rehoboth basin of the Irumide Belt, Namibia. Mineralization and hydrothermal alteration are restricted to deformed lithologies particularly the metasediments. Lithological relationships, geochemistry and metallogenic characteristics of the Irumide Belt suggest an intra-continental rift setting. Copper mineralization is well known along the length of the belt, from Klein Aub in the southwest to Ghanzi in the northeast, whereas gold mineralization appears restricted to the
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Forbes, PBC, M. Thanjekwayo, JO Okokwo, M. Sekhula, and C. Zvinowanda. "Lichens as biomonitors for manganese and lead in Pretoria, South Africa." Fresenius Environmental Bulletin, 2008. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1001756.

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Abstract Parmotrema austrosinense (Zahlbr.) Hale lichens were collected from the Pretoria central business district (CBD), as well as three sites to the east of Pretoria; the National Botanical Gardens, the CSIR campus and the suburb of Lynnwood, with the aim of utilising these lichens as biomonitors of air quality to determine the effects of the phasing out of leaded petrol and the simultaneous introduction of manganese anti-knock additives to fuel in South Africa. In addition to lichens, roadside dust and soil samples were collected from the CBD and CSIR campus, and all samples were analysed
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Moses, Mokete. "The deportment of manganese in the Gamsberg East orebody South Africa." Diss., University of Pretoria, 2015. http://hdl.handle.net/2263/53531.

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The Gamsberg East orebody is the least studied orebody of the Gamsberg zinc (Zn) deposit. The Gamsberg Zn deposit is a largest undeveloped Broken Hill-type deposit, which is well known for relatively low zinc grade as well as manganese (Mn) being a problem and penalty element. The occurrence of manganese within the sphalerite crystal lattice is one of the reasons for the lack of mining development over the past three decades. The recent metallurgical test works of the Gamsberg East ore showed that alabandite floats faster than sphalerite and this adds to the Mn penalty factor. Alabandite (Mn
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Badenhorst, Jaco Cornelis. "The precambrian iron-formations in the Limpopo belt as represented by the magnetite quartzite deposits at Moonlight, Koedoesrand area, Northern Transvaal." Thesis, Rhodes University, 1991. http://hdl.handle.net/10962/d1013309.

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This dissertation is based largely on data that was accumulated during the execution of an exploration program by Iscor Ltd in the Northern Transvaal. The program included geological mapping, geophysical surveys and drilling, on Precambrian iron-formations in the Central Zone of the Limpopo Belt. The structure, stratigraphy, metamorphism, and economic importance of the magnetite quartzites and associated lithologies of the Moonlight prospect are discussed. The lithologies underlying the Moonlight prospect area consist of various pink- and grey-banded gneisses and pink granulite, together with
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Books on the topic "Manganese ores – South Africa"

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Cairncross, B. The manganese adventure: The South African manganese fields. Associated Ore & Metal Corp., 1997.

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Harley, M. The mineralisation at Elandshoogte Gold Mine, Eastern Transvaal, South Africa. University of the Witwatersrand, 1990.

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United States International Trade Commission. Electrolytic manganese dioxide from Australia, China, Greece, Ireland, Japan, and South Africa: Investigations nos. 731-TA-1048-1053 (preliminary). U.S. International Trade Commission, 2003.

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Bowles, M. Tungsten mineralisation in the Namaqualand-Bushmanland region, northwestern Cape, South Africa. Republic of South Africa, Dept. of Mineral and Energy Affairs, Geological Survey, 1988.

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Duane, M. J. Pb and Sr isotopic characteristics of Proterozoic Pb-Zn and Au deposits, Transvaal sequence, South Africa: Suggestions for their source areas and genesis. University of the Witwatersrand, 1988.

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Pretorius, Desmond A. The sources of Witwatersrand gold and uranium: A continued difference of opinion. University of the Witwatersrand, 1989.

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Pretorius, Desmond A. The sources of Witwatersrand gold and uranium: A continued difference of opinion. University of the Witwatersrand, 1989.

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Rudolf, Saager, Köppel V. H, and University of the Witwatersrand. Economic Geology Research Unit., eds. Uranium distribution and redistributiom in a suite of fresh and weathered pre-Witwatersrand and Witwatersrand conglomerates from South Africa. Economic Geology Research Unit, University of the Witwatersrand, 1985.

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International Symposium on Processing of Nickel Ores & Concentrates (1st : d2005 Cape Town, South Africa). Proceedings of processing of nickel ores & concentrates 05: Cape Town, South Africa, November 16-17, 2005. MEI Conferences, 2005.

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Ruhmer, W. T. A techno-economic evaluation of five routes for the communition of gold ores in South Africa. Council for Mineral Technology, 1985.

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Book chapters on the topic "Manganese ores – South Africa"

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Moholwa, M. S., J. D. Steenkamp, and H. L. Rutto. "Method to Quantify the Effect of Temperature and Rotational Speed on the Decrepitation of South African Manganese Ores in a Rotary Kiln." In 11th International Symposium on High-Temperature Metallurgical Processing. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-36540-0_72.

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Akdogan, G., E. Burucu, and R. H. Eric. "Reduction behaviour of some South African manganese ores." In Ferrous and Non-Ferrous Alloy Processes. Elsevier, 1990. http://dx.doi.org/10.1016/b978-0-08-040411-0.50008-0.

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"(a) Central Andes of Peru, near Chacayán: terraces in the dry 268 season (b) View from the central railway of Peru 268 11.2 The driest desert in the world, the Atacama, northern Chile 270 11.3 One of the highest mountains in the Andes, Huascarán, Peru 270 11.4 Latin America: mechanisation in Brazil (a) Early textile machinery installed in a mill in Northeast 274 Brazil, Salvador (b) Plant for processing manganese ore, Serra do Navio, 274 Amapa, North Brazil 12.1 Africa south of the Sahara: cultivators and herders (a) Trappean lava plateau of central Ethiopia: patchwork of 296 ploughed fields and land with crops (b) Eastern lowlands of Ethiopia: nomads herding cattle 296 12.2 Africa south of the Sahara: agriculture (a) Subsistence agriculture: a stick used to make holes in the 297 soil to plant seeds, Ethiopia (b) Commercial agriculture: sisal fibre being processed 297 12.3 Africa south of the Sahara: church hollowed out of a deposit of 298 sandstone, Lalibela, Ethiopia 12.4 Tanzania: extracts from manuals on diet and health 300 12.5 South Africa: cartoons from the magazine Fun 302 13.1 Semi-desert landscape, with some cultivation and a date-palm 315 Mosque in Kaiouran, Tunisia, first in status in North Africa 316." In Geography of the World's Major Regions. Routledge, 2003. http://dx.doi.org/10.4324/9780203429815-162.

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Conference papers on the topic "Manganese ores – South Africa"

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Kalenga wa Kalenga, Michel. "SLAG FORMATION IN THE REDUCTION ZONE USING COKE DURING HIGH CARBON FERROMANGANESE PRODUCTION USING SOUTH AFRICAN MANGANESE ORES." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/1.3/s04.118.

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Kalenga wa Kalenga, Michel. "PHASE RELATIONS IN THE REDUCTION ZONE IN PRESENCE OF CARBON MONOXIDE DURING HIGH CARBON FERROMANGANESE PRODUCTION USING SOUTH AFRICAN MANGANESE ORES." In 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings. STEF92 Technology, 2019. http://dx.doi.org/10.5593/sgem2019/1.3/s04.115.

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WA KALENGA, Michel Kalenga, Didier Kasongo NYEMBWE, and Merete TANGSTAD. "study on the influence of Al2O3/SiO2 on the KINETICS in the prereduction zone during high carbon ferromanganese production using basic south african manganese ores." In METAL 2020. TANGER Ltd., 2020. http://dx.doi.org/10.37904/metal.2020.3588.

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Fischel, Matthew, Cathy Clarke, and Donald Sparks. "Characterization and Reactivity of Geogenic Manganese-Oxides from South Africa." In Goldschmidt2020. Geochemical Society, 2020. http://dx.doi.org/10.46427/gold2020.715.

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Nelson, Gill, and Brad Racette. "P205 Measuring the health effects of manganese smelter emissions in south africa: a pilot study." In Occupational Health: Think Globally, Act Locally, EPICOH 2016, September 4–7, 2016, Barcelona, Spain. BMJ Publishing Group Ltd, 2016. http://dx.doi.org/10.1136/oemed-2016-103951.521.

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