 | | Journal (article/letter/editorial) | | Bushveld Complex, South Africa, and Great Dyke, Zimbabwe Thomas OberthĂŒr Bundesanstalt fĂŒr Geowissenschaften...Complex of South Africa and the Great Dyke of Zimbabwe. Samples were obtained underground, from core...Bushveld Complex, South Africa; the Great Dyke, Zimbabwe; the Stillwater grains, and they are ofthe subordinate...Bushveld Complex in South Africa, of the Sudbury district in Canada, and later Norilsk in Russia grand style...Bushveld Complex; South Africa; Great is Dyke; Zimbabwe; platinum-group minerals; Bushveld Complex in |  | | Journal (article/letter/editorial) | | mineralogy of platinum-group elements at Hartley Platinum Mine, Zimbabwe Part 1. Primary distribution patterns...platinum-group element (PGE) mineralization. At the Hartley Platinum Mine, the MSZ is up to some meters thick and...Ă Main SulïŹde Zone Ă Great Dyke Ă Hartley Platinum Mine Ă Zimbabwe Introduction Deposits of platinum-group...Bushveld Complex, South Africa). The Great Dyke of Zimbabwe (Fig. 1) constitutes the worldâs second largest...economic-grade primary MSZ ores collected at the Hartley Platinum Mine. The present paper reports on the distribution |  | | Journal (article/letter/editorial) | | Platinum-Group Element Mineralisation in the Great Dyke, Zimbabwe, and its Relationship to Magma Evolution and Magma...Prendergast 1 Carson Close, Greendale, Harare, Zimbabwe. e-mail: marprend@hotmail.com ABSTRACT The platinum-group...magma chamber. Introduction The Great Dyke of Zimbabwe contains the worldâs second largest single resource...Mimosa mine is commencing major expansion, open-cast operations recently began at the Ngezi mine and further...the Archaean granites, and greenstones of the Zimbabwe Craton (Figure 1). Aligned approximately NNE, |  | | Journal (article/letter/editorial) | | in the oxidized Main Sulfide Zone, Great Dyke, Zimbabwe Marek Locmelis & Frank Melcher & Thomas OberthĂŒr...Great Dyke mafic/ultramafic layered intrusion of Zimbabwe, economic concentrations of platinum-group elements...Beneficiation . PGE oxides Introduction The Great Dyke of Zimbabwe is a 2,575.4±0.7-Ma-old mafic/ ultramafic layered...cutting Archean granites and greenstone belts of the Zimbabwe Craton (Prendergast 1988; OberthĂŒr et al. 2002)...from the baseâmetal refinery (Evans 2002). At Hartley Mine, the recovered grades of Pt and Pd from pristine |  | | Journal (article/letter/editorial) | | mineralogy of platinum-group elements at Hartley Platinum Mine, Zimbabwe Part 2: Supergene redistribution in...present in the Makwiro River close to the Hartley Platinum Mine indicates further mineralogical changes...SulïŹde Zone Ă Placers Ă Great Dyke Ă Hartley Platinum Mine Ă Zimbabwe Editorial handling: O. Thalhammer...Espoo, Finland Introduction In the Great Dyke of Zimbabwe, economic concentrations of platinum-group elements...MSZ created in the course of mining at Hartley Platinum Mine. The present study focuses on the redistribution |  | | Journal (article/letter/editorial) | | including the type locality minerals genkinite, irarsite and platarsite, as well as some additional and...provided the first descriptions of the PGE minerals irarsite [IrAsS], genkinite [(Pt,Pd)4Sb3] and platarsite...platinum mine in the northern part of the eastern Bushveld was the Atok Mine (now Bokoni Mine). As the...Bushveld Brakspruit (24°54â56.7ââE, 27°12â53.2ââS). West of Norton, river north of road bridge. 20 kg of...stibiopalladinite Rh-genkinite ruarsite hollingworthite irarsite platarsite atokite Rh-isomertieite unnamed unnamed |  | Oberthur, T., Melcher, F., Gast, L., Wohrl, C., Lodziak, J. (2004) DETRITAL PLATINUM-GROUP MINERALS IN RIVERS DRAINING THE EASTERN BUSHVELD COMPLEX, SOUTH AFRICA. The Canadian Mineralogist, 42 (2) 563-582 doi:10.2113/gscanmin.42.2.563 | Journal (article/letter/editorial) | | the Mafic Phase of the Bushveld Complex. To the west are the Leolo Mountains, composed of Main Zone gabbros...the Atok mine and Steelpoort (Fig. 2), the layered sequence dips 10â15° southwest and west. To the east...UGâ2 horizon can be traced from close to the Atok mine for over 30 km to the Steelpoort River (Fig. 2)...Mooihoek Merensky Reef UG - 2 Onverwacht Pipes Mine Rivers / streams er Riv Watershed Steelpoort...systems Pd â Sb ± As ± Te ± Sn, hollingworthite and irarsite, unnamed [RhNiAs], rhodarsenide or palladoarsenide |  | Oberthur, T., Weiser, T. W., Melcher, F., Gast, L., Wohrl, C. (2013) DETRITAL PLATINUM-GROUP MINERALS IN RIVERS DRAINING THE GREAT DYKE, ZIMBABWE. The Canadian Mineralogist, 51 (2) 197-222 doi:10.3749/canmin.51.2.197 | Journal (article/letter/editorial) | | PLATINUM-GROUP MINERALS IN RIVERS DRAINING THE GREAT DYKE, ZIMBABWE Thomas OBERTHĂR§, Thorolf W. WEISER, Frank MELCHER...and PGE-oxides (unstable). Keywords: Great Dyke, Zimbabwe, alluvial sediments, Pt-Fe alloy, Os-Ir-Ru alloy...Bushveld Complex of South Africa, the Sudbury district in Canada, and later Norilsk in Russia came into...intrusions (Bushveld, South Africa; Great Dyke, Zimbabwe; Stillwater, USA) that host the overwhelming proportion...of knowledge on the Great Dyke of Zimbabwe. The Great Dyke of Zimbabwe constitutes the worldâs second largest |  | Prichard, Hazel M., SuĂĄrez, Saioa, Fisher, Peter C., Knight, Robert D., Watson, John S. (2018) Placer platinum-group minerals in the Shetland ophiolite complex derived from anomalously enriched podiform chromitites. Mineralogical Magazine, 82 (3) 491-514 doi:10.1180/minmag.2017.081.099 | Journal (article/letter/editorial) | | Pt-arsenides (64%) and Pd-antimonides (17 %), with less irarsiteâhollingworthite (11%) and minor Pd-sulfides, Pt-Pd-Cu...with the rocks. The more resistant sperrylite and irarsiteâ This is a 'preproof' accepted article for Mineralogical...(IPGM), mainly lauriteâerlichmanite (RuS2âOsS2), irarsite (IrAsS), and OsâIrâRu alloys. Relevant examples...interstitial laurite is often accompanied by native Os, irarsite and ruthenian pentlandite (Prichard et al., 1986;...North, South Cliff, which consists of laurite, irarsite, hollingworthite (RhAsS), ruthenian pentlandite |  | Mota-E-Silva, Jonas, Prichard, Hazel M., SuĂĄrez, Saioa, Ferreira Filho, Cesar F., Fisher, Peter C. (2016) Supergene Alteration of Platinum-Group Minerals and the Formation of Pd-Cu-O and Pd-I-O Compounds In the Limoeiro Ni-Cu-(PGE) Deposit, Brazil. The Canadian Mineralogist, 54 (3) 755-778 doi:10.3749/canmin.1500049 | Journal (article/letter/editorial) | | abbreviations: A, Amazonia; SCC, SaÌo Francisco/Congo; WA, West Africa; RP, Rio de La Plata; SA, Sahara; and K,...(Mrk), sperrylite (Spy), hollingworthite (Hlw), irarsite (Irs), violarite (Vio), pyrite (Py), goethite...Within this group of PGM, sperrylite (PtAs2), irarsite [(Ir,Pt,Rh)AsS], and hollingworthite [(Rh,Ir,Co...lm2, hollingworthite ranges from 3 to 6 lm2, and irarsite from 6 to 110 lm2. They 763 PLATINUM-GROUP...merenskyite; Spy, sperrylite; Hlw, hollingworthite; Irs, irarsite. occur as euhedral relicts derived from the primary |  | Dare, S. A. S., Barnes, S.-J., Prichard, H. M., Fisher, P. C. (2010) The Timing and Formation of Platinum-Group Minerals from the Creighton Ni-Cu-Platinum-Group Element Sulfide Deposit, Sudbury, Canada: Early Crystallization of PGE-Rich Sulfarsenides. Economic Geology, 105 (6) 1071-1096 doi:10.2113/econgeo.105.6.1071 | Journal (article/letter/editorial) | | PGE sulfarsenides are euhedrally zoned with an irarsite (IrAsS) core, an outer layer of hollingworthite...deposit on the South Range of the Sudbury mining district. Geologic Context The Sudbury Igneous Complex...Nor Granophyre Norite McCreedy East McCreedy West Sublayer Norite SRSZ Diorite âoffset â dykes...veins in the brecciated country rock (e.g., McCreedy West, McCreedy Eastâ153 zone, and Strathcona deposits);...contact- and footwall-style orebodies (e.g., McCreedy Westâprecious metal zone). This distribution has been |  | | Book | | Bushveld Complex, South Africa, and Great Dyke, Zimbabwe Reprinted from: Minerals 2018, 8, 581, doi:10...PGM from China, Russia, South Africa, USA, and Zimbabwe are reported. In his contribution, OberthĂŒr [3]...OsâIrâRu alloys, and minor PdâTe, anduoite, and irarsite in dunite and chromitite of the Xiadong Alaskan-type...ite vein-disseminated ores from the Komsomolsky mine of the Talnakh and Oktyabrsk deposits, Norilâsk...bushveld complex, South Africa, and Great Dyke, Zimbabwe. Minerals 2018, 8, 581. [CrossRef] Stepanov, S |  | | Journal (article/letter/editorial) | | occur as laurite (RuS2), erlichmanite (OsS2), irarsite (IrAsS) and alloys (OsâIrâRu and PtâFe). They...such as laurite (RuS2), erlichmanite (OsS2) and irarsite (IrAsS) have been identiïŹed as small inclusions...described in the Somabula gravels of the Great Dyke in Zimbabwe, and detrital grains of PtâFe alloy are ubiquitous...crystals (up to 10 mm) of laurite, erlichmanite and irarsite PGM in placer deposits are detrital grains, derived...Erlichmanite Erlichmanite Erlichmanite Erlichmanite Irarsite Irarsite OsâIr alloy Os-rich alloys OsâIrâRu alloy |  | Uysal, Ibrahim, Zaccarini, Federica, Sadiklar, M. Burhan, Bernhardt, Heinz-JĂŒrgen, Bigi, Simona, Garuti, Giorgio (2009) Occurrence of rare Ru-Fe-Os-Ir-oxide and associated Platinum-group minerals (PGM) in the chromitite of MuÄla ophiolite, SW-Turkey. Neues Jahrbuch fĂŒr Mineralogie - Abhandlungen, 185 (3) 323-333 doi:10.1127/0077-7757/2009/0131 | Journal (article/letter/editorial) | | (5), Ru-Fe-Os-Ir-oxides (4), Pt-Fe alloy (1) and irarsite, ideally IrAsS, (1), and form crystals of variable...Os-Ir: Os-Ir alloy, Pt-Fe: Pt-Fe alloy, Irar: Irarsite. 13.51 2.52 47.50 0.82 0.00 0.01 0.00 0.25 0...(20), Os-Ir-Ru alloy (12), Pt-Fe alloy (2) and irarsite (2) (Fig. 4b). Their size ranges between 20 and...oxidized Main Sulphide Zone at the Hartley Platinum Mine of Zimbabwe. According to these authors, these...of the platinum-group Elements at Hartley platinum mine, Zimbabwe. 2. Supergene redistribution in the |  | Stribrny, B., Wellmer, F. -W., Burgath, K. -P., OberthĂŒr, T., Tarkian, M., Pfeiffer, T. (2000) Unconventional PGE occurrences and PGE mineralization in the Great Dyke: metallogenic and economic aspects. Mineralium Deposita, 35 (2) 260-280 doi:10.1007/s001260050019 | Journal (article/letter/editorial) | | redistributions should be kept in mind during planning and mine operation. Investigations of unconventional PGE...initial production from mines in the Great Dyke of Zimbabwe has yielded 2.1 t Pt. The remaining 9.54 t are...Russia Stillwater, USA Sudbury, Canada Great Dyke, Zimbabwe Kupferschiefer, Poland Bregu i Bibes, Albania...production, for example those of the Great Dyke, Zimbabwe, ± potential alternatives in the form of unconventional...mineralizations PGE in layered intrusions: the Great Dyke, Zimbabwe Geological setting The ca. 2.58-Ga-old Great Dyke |  | Piña, R., Gervilla, F., Barnes, S.-J., OberthĂŒr, T., Lunar, R. (2016) Platinum-group element concentrations in pyrite from the Main Sulfide Zone of the Great Dyke of Zimbabwe. Mineralium Deposita, 51 (7) 853-872 doi:10.1007/s00126-016-0642-3 | Journal (article/letter/editorial) | | from the Main Sulfide Zone of the Great Dyke of Zimbabwe R. Piña 1 & F. Gervilla 2 & S.-J. Barnes 3 & T...The Main Sulfide Zone (MSZ) of the Great Dyke of Zimbabwe hosts the worldâs second largest resource of platinum-group...other trace element contents in pyrite from the Hartley, Ngezi, Unki, and Mimosa mines of the Great Dyke... LA-ICP-MS . Main sulfide zone . Great Dyke . Zimbabwe Introduction Pyrite [FeS2] is a common minor...distribution of PGE in the deposits. In the Great Dyke of Zimbabwe, the worldâs second largest resource of PGE after |  | | Report (issue) | | PETROLEUM Suite 1210, 3400 de Maisonneuve Boulevard West MontrĂ©al, QuĂ©bec, Canada H3Z 3B8 ISBN 1-894475-27-5...Platinum-group element mineralization of the Great Dyke, Zimbabwe. In The Geology, Geochemistry, Mineralogy and...relationships at the currently operating Lac de Iles mine (Ontario), the Marathon deposit in the Coldwell...(Ontario), and the formerly producing Salt Chuck mine (Alaska). They, thus, cover a range of deposit types...Company. The PGE mineralization in the Great Dyke (Zimbabwe), which is the worldâs second largest reserve |  | | Book (edition) | | Ferroselite lamellar NagyĂĄgite Vulcanite Irarsite strong Koutekite bluish to brownish grey sometimes... Mineral Descriptions Molybdenite in Graphite; Bogala Mine, Sri Lanka 51 Copper, native Synonym(s): Cuivre...of cuprite (bluish grey); North Mine (North Broken Hill Mine; NBH Mine), Broken Hill, Yancowinna Co.,...vein in jasper (red internal reflections); Madenköy Mine, Ăayeli, Rize Province, Black Sea Region, Turkey...argentite reaction rim (greenish grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL |  | | Journal (article/letter/editorial) | | Sikhuran complexes in the Esfandagheh district, and the Faryab district. Chromitite and dunite were analysed...PGMs interstitial to chromite are represented by irarsite, hollingworthite, RuâOsâIr alloys, tolovkite,...1981). 2. Geological background 2.3. Esfandagheh district 2.1. Iranian ophiolites The Iranian ophiolites...km length and 5â10 km width in the Esfandagheh district of the Kerman province, constituting Iran's second...Mesozoic Coloured MĂ©lange. In the Esfandagheh district, a clear separation between the two sub-belts |  | | Journal (article/letter/editorial) | | likely came from the placer deposits of the Choco district of Colombia2. This material was given to Dr. William...recovered from the placer deposits in the Choco district of Colombia. Similar material was described by...were from placer deposits located in the Chocos district of Colombia and the Ural Mountains of Russia.... The inclusion consists of distinct grains of irarsite (IrAsS) and laurite (RuS2). The laurite contains...Cotton (1997) and a compendium of papers edited by Hartley (1991). The reader is referred to Platinum Metals |  | | Book | | Redistribution in the Main Sulfide Zone of The Great Dyke, Zimbabwe T. OberthĂŒr, F. Melcher 75-96 97-111 6. Placers...Systems: Refining the Classification Using McCreedy West Mine and Podolsky Project Case Studies 163-180 C.E...geochemical surveys M.L. Zientek, S.R. Corson, R.D. West 391-407 19. Exploration and Mining Perspective...Sulfide Zone of the Great Dyke, Zimbabwe - Case Study of the Hartley Platinum Mine A.H. Wilson, R.T. Brown ...REDISTRIBUTION IN THE MAIN SULFIDE ZONE OF THE GREAT DYKE, ZIMBABWE T. OberthĂŒr, F. Melcher INTRODUCTION GEOLOGICAL |  | | Journal (article/letter/editorial) | | mining operations and reworking of old chromite mine dumps from the lower group (LG) and middle group...the Mooinooi operation, as well as from the recent mine production from the nearby Millsell and Mooinooi...originates both from current mining operations and from mine dumps. The dump feed at Millsell has an average... a zinc-tin-copper-lead ore from Mount Pleasant mine (MP-1b) from the Canadian Certified Reference Materials... laurite, and vysotskite), PGE-sulfarsenides (irarsite and hollingworthite), Pt-Fe-alloys (iso- and tetraferroplatinum) |  | | Report (issue) | | 3.9. (ii) Mawpyut Ultramafic Complex, Meghalaya WEST BENGAL 3.10. (i) Bagalia-Sonaijuri-Kashipur-Gopalpur...World. World production of PGM, 2007-2016. World mine production of PGM by country, 2016. Platinum prices...Geological map of Arumanalur area, Kanyakumari district, TN. Geological Map of Kadavur gabbro-anorthositic...of Oddanchattiram Ultramafic Complex, Dindigul district. Geological map of Kerala showing PGE exploration...and associated rocks around Rakahbdev, Udaipur District. Schematic flow sheet for Diagnostic Flotation |  | | Journal (article/letter/editorial) | | Evidence from the rivers draining The Great Dyke in Zimbabwe (OberthĂŒr et al., 2013) provides a view of the...depth of ~2 m overlying weathered bedrock. On the west bank soil overlies gravel in pit BW13. Soil and...PGM are similar. The Alako runs for 2 km along the west side of Mateki Ridge in a small, well defined watershed...could have brought alluvial PGM from elsewhere. The west slope of Mateki Ridge above the Alako is the dip... There are no tributaries or dry valleys on the west side of the ridge indicating sufficient erosion |  | Prichard, Hazel M., Mondal, Sisir K., Mukherjee, Ria, Fisher, Peter C., Giles, Nicolas (2018) Geochemistry and mineralogy of Pd in the magnetitite layer within the upper gabbro of the Mesoarchean Nuasahi Massif (Orissa, India) Mineralium Deposita, 53 (4) 547-564 doi:10.1007/s00126-017-0754-4 | Journal (article/letter/editorial) | | Witwatersrand, Johannesburg 2001, South Africa (irarsite/hollingwothite). Many of these PGM also occur...thick including the Inyala and Railway Block of Zimbabwe (Stowe 1994; Prendergast 2008), the IpueriaMedrado...hosted by the serpentinized dunite that are, from west to east, Durga (with a stratigraphic thickness of...to the early Archean greenstone sequences in the west and also transgresses the ultramafic body where...with a steep dip varying from 70° to the north and west to vertical. The mineralogy and petrology of these |
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