 | | Journal (article/letter/editorial) | | ISTRA, ANDI•LVIRAGAS?Ai•RINI Abstract The Atok Platinum Mine is situated in the northeastern portion of...with smaller quantitiesof laurite, sperrylite, moncheite,paolovite,a new mineral atokite (Pt,Pd)aSn , and...precipitant. Introduction BastardReef Ti•F. Atok Platinum Mine is situated on the farm Middelpunt 420 KT...AND GASPARRINI Fro. 1. Locality map of the Atok Platinum Mine in the eastern portion of the Bushveld Igneous...similar chromitite THE MERENSKY REEF AT THE ATOK PLATINUM MINE seamup to 1 inch (2.5 cm) in thickness(locally |  | | Journal (article/letter/editorial) | | mineralogyof the MerenskyReefat the Impalaplatinummines,South Africa, hasbeen investigated.Polishedsectionswere preparedfrom...determinedto be asfollows:coopetite(44%),laurite (21%),moncheite(17%),and braggite(12%).Thirteen additionalplatinum-group...•3 Rustenburg Platinum Mine .4 WesternPlatinum Mine •S Atok Platinum Mine F[c.1. Distribution ofthemaficportion...Investigations located in the eastern Transvaal, South Africa. Cabri (1981) hassummarizedthe platinum-groupmineral...whole;Schwellnus et al. (1976), the reef in the vicinity of Atok mine in the northeasternportion of the BushveldComplex; |  | | Journal (article/letter/editorial) | | Abstract The Merensky Reef at the Western Platinmn mine differs in many respectsfrom the reef at its type...an extensive description (Wagner, 1929) of all South African deposits. The 1929 volume included a mi...mineralogybetween the Rustenburg ThE Western Platinum mine is situatedon the farm with those of the reef at...RUSmENBUR •• ..... WESTERN PLATINUM PRETOR[A MI MINE FIG.1. Distribution of themaficzoneof theBushveld...platinum-groupmineralogyof the Merensky Reef at Atok in the eastern portion of the BushveldIgneousComplex |  | | Journal (article/letter/editorial) | | normalreef faciesin the centralsectionof the Rustenburg mine are described and discussed. The studyindicatesthat...are braggite($8 vol %),cooperite (17 vol %), moncheite (15 vol %), laurite (8 vol %),kotulskite(8 vol...publishedlocationand analysesof discrete at the Union mine where a considerablythicker facies platinum-groupmineralsin...1924, much admirablework wasdone by Cooper platinum mine, and Schwellnuset al. (1976) on the (1928, 1929)...1929), Adam (19:31),and Bannister(1982) in Atok platinum mine. An important proportion of the total platinumisolatingsomeof |  | | Journal (article/letter/editorial) | | Geology, University of Pretoria, Pretoria 0002, South Africa. e-mail: mierkle@postino.up.ac.za; wiebke.grote@up...ac, za © 2008 September Geological Society of South Africa ABSTRACT Gold-rich alloys with variable ¡imounrs...investigation of such grains from Rustenbutg Platinum Mine (Kingston and El-Dosuky, 1982) revealed that many...inclusions are not restricted to Rustenburg Platinum Mine and can be observed in coarse metallic gold from...El-l>(),suky (1982) and Schwellnus et al., (1976), SOUTH AFRICAN JOURNAL OF GEOLOGY Kingston & ROLAND |  | | Report (issue) | | 991 Z=4 X-ray Powder Pattern: Merensky Reef, South Africa. 2.295 (100), 1.202 (100), 1.408 (90), 0.9153...28.28 17.70 Total 99.42 (1) Merensky Reef, South Africa; by electron microprobe, corresponding to (Pt1...Reef, South Africa). Association: Atokite, unspecified platinum tellurides (Merensky Reef, South Africa);...Africa); moncheite, pyrrhotite, pentlandite (Stillwater complex, Montana, USA). Distribution: In the Rustenburg...[TL], Atok, and Onverwacht mines, on the Merensky Reef, Bushveld complex, Transvaal, South Africa. From |  | Barkov, A. Y., Martin, R. F., Kaukonen, R. J., Alapieti, T. T. (2001) THE OCCURRENCE OF Pb Cl (OH) AND Pt Sn S COMPOUNDS IN THE MERENSKY REEF, BUSHVELD LAYERED COMPLEX, SOUTH AFRICA. The Canadian Mineralogist, 39 (5) 1397-1403 doi:10.2113/gscanmin.39.5.1397 | Journal (article/letter/editorial) | | THE MERENSKY REEF, BUSHVELD LAYERED COMPLEX, SOUTH AFRICA ANDREI Y. BARKOV§ AND ROBERT F. MARTIN Department...the Merensky Reef, Bushveld layered complex, South Africa. This seems to be the first reported occurrence...of the rustenburgite–atokite and merenskyite–moncheite series, zoned laurite, and an unknown stannosulfide... mafic-ultramafic rocks, layered intrusion, South Africa. SOMMAIRE Nous documentons la présence d’une...the Merensky Reef, Bushveld igneous complex, South Africa. We describe this phase and the associated platinum-group |  | | Journal (article/letter/editorial) | | platinum able information on the ores from the Union mine platinumdeposits.When onebf us (EFS) pubby Kingston(1966)...oœBrynard et al. (1976), cent sperrylite. At Union mine, laurite and ferroVermaakandI-Iendriks(1976), andGasparriniand...Minerals in the Merensky Reef and in the Driekop Pipe Atok, Mineral Platinum-iron alloy (Pt, Fe) Sperrylite...15 -- Kotulskite (Pd, Pt) (Te, Bi) 8.3• Moncheite Pt (Te, Bi)• Braggire (Pt, Pd, Ni)S 10.3 RuS•...Sudbury, Canada The recognitionof michenerite,moncheite,and EVIDENCE 1453 TABLI• 3. Compositional Variations |  | 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) | | RIVERS DRAINING THE EASTERN BUSHVELD COMPLEX, SOUTH AFRICA THOMAS OBERTHÜR§, FRANK MELCHER, LOTHAR GAST...placer, Maandagshoek, eastern Bushveld Complex, South Africa. SOMMAIRE Lors de nos campagnes de terrain...between 2 and 3 km wide and runs approximately north–south, subparallel to the layering of the Mafic Phase...hills underlain by the Critical Zone. Between the Atok mine and Steelpoort (Fig. 2), the layered sequence...Maandagshoek (Fig. 2). Accordingly, both a north- and a south-flowing Moopetsi River are present. In the area |  | | Journal (article/letter/editorial) | | University] at 17:41 09 June 2016 TaEnaleh, Noril’sk District, Siberia, Russia U ntil a few years ago, the...fact, this find and a historical locality in South Africa for which specimens are not available represented...layered intrusive bodies such as the Bushveld (South Africa) and Stillwater (Montana) Complexes. In addition...Great Eastern mine, Clark County, Nevada. It is an ore mineral in the active Pt-Pd mine and related occurrences...collected at the Vermilion mine in what is now the famous Sudbury district, Ontario, Canada. He named |  | | Journal (article/letter/editorial) | | of Pretoria, Pretoria, South Africa, 2 Messina Ltd., Johannesburg, South Africa With 7 Figures Received...1978; Hatton and Von Gruenewaldt, 1987). In the south, an anticlinal feature in the floor rocks, the Steelpoort...critical zone from 1500 m north of the fault to 700 m south of the fault. Lack of outcrop and mining activity...about 5000 m. The rocks strike E - W and dip to the south, with dips increasing from about 50-55 ° in the...encompass the two chromitite layers, are developed. Local thickening of the UG-2 pyroxenite is sometimes accompanied |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | | Journal (article/letter/editorial) | | differentiatingthe oresin the vicinity (north and south) of the PilansbergAlkaline Complexfrom thoseof the...Mineral name (where known) or qualitative1 Atok Gravity Atok ZG-32 composition east concentrate central...Pt(Pd, Ni)S Laurite Ru(Os, Ir)Sa 0.7 2.3 1.7 Moncheite Michenerite 0.3 22.2 25.0 17.9 52.0 5.4...Irarsite Sperrylite Guanglinite? Palladoarsenite? Moncheite Michenerite Michenerite Merenskyite Kotulskite...trusives(Fig. 7). From unpublishedinformationobtainedby mine geologists of the Johannesburg ConsolidatedInvestmentCompany |  | | Journal (article/letter/editorial) | | --589.6 m --590.4 m --543.5 m 6-6 north 7-1 south 7-1 south --1240 m Clino- pyroxene Feldspar Olivine...Sources:1-7. Farm Zwartklip 405 KQ--Union Platinum Mine (van Zyl, 1960,p. 43); 8. Farm Turffontein302 JQ--Rustenburgarea...(1972); 11-12. Farm Zwartklip 405 KQ--Union Platinum Mine (van Zyl. 1960, p. 35); 13. Sample Z280, borehole...easternTransvaal; "This is also the case in the Rustenburg district, where the principal platinum carriers are a layer...Rustenburg. By contrast,a randomsampleof M.R. from inum mine) to be made. Becauseof the early terminology(M.R |  | | Journal (article/letter/editorial) | | the Merensky Reef at Bafokeng Rasimone Platinum Mine (BRPM) are described. A model for the formation...magma emplacement owing to interaction with the local Transvaal sediments. As a result, mechanical separation...The 206 Ga magmatic event recorded in southern Africa led to the formation of several layered intrusions...Nkomati deposit, located c. 50 km to the east of the South Eastern Bethal Limb (De Waal et al., 2001; Li et...Since its discovery the Bushveld Complex in South Africa has attracted unprecedented interest owing to |  | | Journal (article/letter/editorial) | | Applied Geology, University of Natal, Durban, South Africa With 4 Figures Received February 2, 1996; accepted...sperrylite and testibiopalladite merenskyite and moncheite hollingworthite, irarsite, platarsite and tolovkite...e 7. malanite-cuproiridsite-cuprorhodsite 8. moncheite-merenskyite-melonite 9. platinum-iridium 10. osmium-ruthenium...these include melonite-merenskyite and melonite-moncheite. The presence of up to 7.2 wt% Rh in cobaltite...of platinum-group Ir Os Michenerite - - Moncheite 0.2 2.32 Niggliite - - Omeiite 1.1 Osarsite |  | | Journal (article/letter/editorial) | | 4000, South Africa AND ROGER N. SCOON Postnet Suite 291, Private Bag X31, Knysna 6570, South Africa...of the eastern limb of the Bushveld Complex, South Africa (Fig. 1). The original discovery of the Merensky...contributions from this area to date deal with the Atok mine, for many years the only platinum producer in...Driekop, Maandagshoek, and Winnaarshoek properties, south 971 972 MITCHELL AND SCOON FIG. 1. Schematic...referred to in the text also shown are: 1 = Atok platinum mine, 2 = Maandagshoek, 3 = Thorncliffe, 4 = Brits |  | | Journal (article/letter/editorial) | | oxide) arepresent asweathering prod- alsorimmedby moncheite and sperrylite(Fig. 7D). This uctsof magnetite...concentrations (ppb)based onchip Twograinsof moncheite (Pt(Te,Bi)•)werefound.Thefirst samples are Pd...x X x X xx -- --x -- Platarsite Kotulskite Moncheite Pt(As, S).• Pd(Te, Bi) Pt(Te, Bi).2 1 3 2 ----...gold(Au)in amphibole (amph). C. Hexagonal prismof moncheite (too)in amphibole (amph) thathasreplaced clinopyroxene...wtpercent Pb;Pbin moncheite isalsodescribedPb,andS (Table3). All arecommon from the Atok mine, Transvaal(Schwellnuset |  | | Journal (issue) | | Rosasite, light blue, field of view 12 mm, Hecia District, Melrose, Montana, photo by L. R. Ream. A Si...can be made at home from materials available from local stores. at low cost, requiring no special set of...collect. There are limitations to the search function. Mine names, for example, are literal; "Big Indian" returned...was taken nght to my selected map area-Tintic District, Utah, which I had just returned home from. The...good eye, you can find your backyard or recognize a mine dump. Which brings up a good point, and a potential |  | Osbahr, Inga, Klemd, Reiner, Oberthür, Thomas, Brätz, Helene, Schouwstra, Robert (2013) Platinum-group element distribution in base-metal sulfides of the Merensky Reef from the eastern and western Bushveld Complex, South Africa. Mineralium Deposita, 48 (2) 211-232 doi:10.1007/s00126-012-0413-8 | Journal (article/letter/editorial) | | from the eastern and western Bushveld Complex, South Africa Inga Osbahr & Reiner Klemd & Thomas Oberthür...Johannesburg( PO Box 106( Crown Mines 2025, South Africa e-mail: robert.schouwstra@angloamerican.com...minerals such as cooperite/braggite, sperrylite, moncheite, and isoferroplatinum. Distribution patterns of...Keywords Merensky Reef . Bushveld Complex . South Africa . Platinum-group elements . Base-metal sulfides...LA-ICP-MS Introduction The Bushveld Complex in South Africa, the largest known layered intrusion on Earth |  | Li, C., Ripley, E. M., Merino, E., Maier, W. D. (2004) REPLACEMENT OF BASE METAL SULFIDES BY ACTINOLITE, EPIDOTE,CALCITE, AND MAGNETITE IN THE UG2 AND MERENSKY REEF OF THE BUSHVELDCOMPLEX, SOUTH AFRICA. Economic Geology, 99 (1) 173-184 doi:10.2113/gsecongeo.99.1.0173 | Journal (article/letter/editorial) | | UG2 AND MERENSKY REEF OF THE BUSHVELD COMPLEX, SOUTH AFRICA CHUSI LI,† EDWARD M. RIPLEY, ENRIQUE MERINO...Sciences, University of Pretoria, Pretoria 0002, South Africa Abstract Interaction of base metal sulfides...an area of 240 × 350 km situated in northern South Africa (Fig. 1). The complex is subdivided into five...and Western platinum mines. RSA = Republic of South Africa. concentrations that vary from parts per million...contact UG2-1155.35 3 cm above the base of UG2 Mine name and sample number Not examined 4 sulfides |  | | Journal (article/letter/editorial) | | the Platreef at the Sandsloot Mine, northern Bushveld Complex, South Africa D. A. HOLWELL1, I. MCDONALD1...K EY WORDS : PGM, Bushveld Complex, South Africa, Sandsloot mine, Platreef, Pt, Pd, base-metal sulphides...sulphides. Introduction THE Bushveld Complex of South Africa is the largest layered igneous intrusion in...Anglo Platinum, at the Sandsloot and Zwartfontein South pits ~30 km northwest of the town of Mokopane (formerly...the RLS. The geology of the Platreef at Sandsloot Mine has been described by Harris and Chaumba (2001) |  | | Journal (article/letter/editorial) | | Sulphide Body of the Uitkomst Complex, Mpumalanga, South Africa H.F.J. Theart Department of Earth Sciences,... University of Pretoria, Pretoria, South Africa E-mail: htheart@postino.up.ac.za C.D. de Nooy Anglovaal...Mining Limited, P O Box 1212, Florida, 1710, South Africa E-mail: dorritn@avmin.co.za ABSTRACT Platinum...of the Uitkomst Complex, Mpumalanga Province, South Africa. Mineralogical investigations were conducted...satellite intrusion of the Bushveld Complex. The Nkomati Mine, a joint venture between Anglovaal Mining Limited |  | | Journal (article/letter/editorial) | | University of Pretoria, Pretoria 0002, Republic of South Africa PETER C. FISHER School of Earth, Ocean and...Reinkoyalskraal, in the western Bushveld Complex, South Africa, has shown that melanorite, leuconorite and...of Pt and Pd bismuthotellurides, predominantly moncheite and merenskyite. In the chromite-rich lithologies...Impala Platinum mine, chromitite, sulfide, telluride, Bushveld Complex, South Africa. SOMMAIRE Notre...prélevés d’une section du banc de Merensky à la mine Impala Platinum, sur la ferme Reinkoyalskraal, dans |  | | Journal (article/letter/editorial) | | GEOLOGICAL EXCURSION TO THE MINING AREAS OF SOUTH AFRICA by Aberra Mogessie, Christoph Hauzenberger...Department of Geology, University of the Free State, South Africa 1. Preface Almost a year ago Aberra Mogessie...(where we had organized past excursions) and South Africa. Having discussed the matter with Christoph...areas of South Africa. We contacted Christoph Gauert from the University of Free State, South Africa to help...help us with the local organization especially to get permission from the different mining companies to |
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