 | | Journal (article/letter/editorial) | | the Western Platinmn mine differs in many respectsfrom the reef at its type locality at Rustenburg,30...30 km to the west. The reef averages 4 m thick and consistsof major porphyritic melanorite and minor p...pegmatiticmelanoriteenclosingtwo thin chromitite bands. Platinum-groupmineralization occursmainly in the vicinity...vicinity of the upper chromitite seam, whereas at Rustenburg, where the reef is very thin and consistsof pegmatitic...between the two localities. The proportionsof the platinum-groupminerals are different from those at all |  | | Journal (article/letter/editorial) | | 77, 1982, pp• 1867-1884 A Contributionon the Platinum-GroupMineralogy of the MerenskyReef at the Ru...variations,and possible parageneticposi- tionsof the platinum-group minerals(PGM)in samples of MerenskyReefpyroxenite...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...reflectanceand hardnessdata are presented.The platinum-groupmineralsare an intimate part of the crystallization |  | | Journal (article/letter/editorial) | | pp 1385-1394 The Platinum-GroupMineralogyof the MerenskyReef at the Impala Platinum Mines, Bophuthatswana...Abstract The platinum-group mineralogyof the MerenskyReefat the Impalaplatinummines,South Africa, hasbeen...followedup by the identificationand analysisof platinum-groupmineralsby electronmicroprobe. The mostabundantbasemetal...the platinum-groupmineralswere determinedto be asfollows:coopetite(44%),laurite (21%),moncheite(17%)...MerenskyReef. Observedtexturesincludethe markedtendencyof platinum-groupmineralsto occurwith chalcopyrite, the exsolution |  | Viljoen, Fanus, Ramakoloi, Ntshebo, Rose, Derek, Reinke, Christian (2015) Mineral Chemistry of (Pt,Pd)-Bismuthotelluride Minerals In the Platreef At Zwartfontein, Akanani Project, Northern Bushveld Complex, South Africa. The Canadian Mineralogist, 53 (6) 1109-1127 doi:10.3749/canmin.1500047 | Journal (article/letter/editorial) | | AKANANI PROJECT, NORTHERN BUSHVELD COMPLEX, SOUTH AFRICA FANUS VILJOEN§, NTSHEBO RAMAKOLOI, AND DEREK...Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa CHRISTIAN REINKE Spectrum Analytical Facility...Johannesburg, P.O. Box 524, Auckland Park, 2006, South Africa ABSTRACT The (Pt,Pd)-bismuthotelluride minerals...phase crystals or form composite grains with other platinum-group minerals, and are predominantly associated...Te/Bi and form a trend of solid solution from moncheite (PtTe2) towards maslovite (PtTeBi). A few analyses |  | 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...in chalcopyrite, in a spatial association with platinum-group minerals, in a sulfide-poor (≤5 vol.% of...the Merensky Reef, Bushveld layered complex, South Africa. This seems to be the first reported occurrence...compound in mafic-ultramafic rocks. The associated platinum-group minerals are members of the braggite series...of the rustenburgite–atokite and merenskyite–moncheite series, zoned laurite, and an unknown stannosulfide |  | | 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...Bushveld Complex is not only a major source of platinum-group elements (PGE), it also contains gold which...investigation of such grains from Rustenbutg Platinum Mine (Kingston and El-Dosuky, 1982) revealed that...Such inclusions are not restricted to Rustenburg Platinum Mine and can be observed in coarse metallic |  | | 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..................... 50 4.2 Unidentified Non-Platinum-Group Phases .......................................................... 69 5.1 Overview of South African Occurrences ........................... |  | | Journal (article/letter/editorial) | | 77, 1982, pp. 1:328-1:347 RegionalTrendsin the Platinum-GroupMineralogyof the Critical Zone of the BushveldComplex...volume distribution,and mode of occurrence of the platinum-groupmineralsresidingin the MerenskyReef, the...unexploredareascan perhapsnow be predicted.The platinum-group mineralsof the UG-2 and overlyingMerenskylayers...in differentiatingthe oresin the vicinity (north and south) of the PilansbergAlkaline Complexfrom thoseof...westernBushveld)and hasled to an overall conceptrelating platinum-groupmineral types to postulatedcentersof increasedvolatile |  | | Journal (article/letter/editorial) | | andsperrylitewith platinum-iron alloyand minorPt-Pd bismuthotellurides and pipesby platinum-iron alloy,sperrylite...sulfidesin the earlier stagesand to form independent platinum-group mineralsin the later stagesof the magmaticcycle...silicatenickelinto sulfidenickel,but alsoin theextraction of platinum-group elements from•silicates, oxides, andsulfides...andeconomically significant platinum-group minerals. Hydrothermal copper-platinum oresnotspatially related...Uralsplacers area casein point;and(3) alteration of platinum-group element alloys in placersis a widespread |  | | Journal (article/letter/editorial) | | Original Article Concentration of Particulate Platinum-Group Minerals during Magma Emplacement; a Case...Bafokeng Rasimone Platinum Mine (BRPM) are described. A model for the formation of platinum-group minerals...To achieve this it is necessary to understand platinum-group element (PGE) behaviour in naturally occurring...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 |  | Crocket, J. H., Teruta, Y., Garth, J. (1976) The relative importance of sulfides, spinels, and platinoid minerals as carriers of Pt, Pd, Ir, and Au in the Merensky Reef at Western Platinum Limited, near Marikana, South Africa. Economic Geology, 71 (7) 1308-1323 doi:10.2113/gsecongeo.71.7.1308 | Journal (article/letter/editorial) | | Reefat WesternPlatinumLimited, nearMarikana, South Africa JAMESH. CROCKET, YUKOTERUTA,ANDJEREMY GARTH...Middelkraal (Western Platinum Limited), ,some25 miles east of Rustenburg,western Transvaal, South Africa. The...westernBushyeldComplex,South Africa, on the farm Middelkraal of Lonrho South Africa Limited, locatedapproximately25...locatedapproximately25 mileseastof Rustenburg. In the area of interestthe MerenskySuite, which vide further detail...lengthwise. One ot•the half-corelengthswas tion platinum-group element. 1308 C./tRRIERS OF Pt, Pd, .lIND |  | | Report (issue) | | Geochemistry, Mineralogy and Mineral Beneficiation of Platinum-Group Elements Edited by Louis J. Cabri Ottawa...PETROLEUM Suite 1210, 3400 de Maisonneuve Boulevard West Montréal, Québec, Canada H3Z 3B8 ISBN 1-894475-27-5...as follows in this example: OBERTHÜR, T., 2002. Platinum-group element mineralization of the Great Dyke...Geochemistry, Mineralogy and Mineral Beneficiation of Platinum-Group Elements. Edited by L.J. Cabri. Canadian... Preface Background The need for a new book on the platinum-group elements (PGE) became apparent about four |  | 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...chromitite layer and the Merensky reef in the western Bushveld Complex has produced four common replacements:...serpentinization superimposed on the Union section. Platinum group minerals, including Ru, Pt, and Pd sulfides...as within the aggregates, suggesting that the platinum group minerals are more resistant to hydrothermal |  | | Journal (article/letter/editorial) | | H.F.J. THEART AND C.D. DE NOOY 287 The Platinum Group Minerals in two parts of the Massive Sulphide...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...1212, Florida, 1710, South Africa E-mail: dorritn@avmin.co.za ABSTRACT Platinum Group Elements (dominated...of the Uitkomst Complex, Mpumalanga Province, South Africa. Mineralogical investigations were conducted |  | | Book | | revised edition) 2 2 . N. DEKUN MINERAL ECONOMICS OF AFRICA 2 3 . B.L GULSON LEAD ISOTOPES IN MINERAL EXPLORATION...Ores DEVELOPMENTS IN ECONOMIC GEOLOGY, 2 6 platinum-group element exploration Dennis L. Buchanan Department...will never be spoken. " P. A. WAGNER, The platinum South Africa deposits so be alluring prophesied and... Foirewoird. The platinum-group elements rhodium, ruthenium, (PGE) include platinum, iridium and osmium...as well a s major industrial uses. a permanent Platinum has aesthetic qualities, combined lustre, which |  | | Journal (article/letter/editorial) | | OF THE PLATINUM-GROUP MINERALS IN A CROSS-SECTION THROUGH THE MERENSKY REEF AT IMPALA PLATINUM: IMPLICATIONS...University of Pretoria, Pretoria 0002, Republic of South Africa PETER C. FISHER School of Earth, Ocean and...composition of platinum-group minerals in samples from a section of the Merensky Reef at Impala Platinum, on the...the farm Reinkoyalskraal, in the western Bushveld Complex, South Africa, has shown that melanorite, leuconorite...of Pt and Pd bismuthotellurides, predominantly moncheite and merenskyite. In the chromite-rich lithologies |  | | Report (issue) | | mineralogy and deposits Definition and characteristics Platinum (Pt) is one of a group of six chemical elements...elements collectively referred to as the platinum-group elements (PGE). The other PGEare palladium (Pd), iridium(lr)...ruthenium(Ru). Reference is also commonly made to platinum-group metals and to platinumgroup minerals, both...to PGM. In this document we use PGM to refer to platinum-group minerals. Pt Atomic weight Atomic number...2.5-3 properties vary considerably (Table 1). Platinum, iridium and osmium are the densest known metals |  | | Journal (article/letter/editorial) | | 4000, South Africa AND ROGER N. SCOON Postnet Suite 291, Private Bag X31, Knysna 6570, South Africa...may be described as a wide-reef facies, in which platinum group element (PGE) mineralization is largely...thinner reef facies found in many areas of the western limb, especially in places where the reef zone...stringer. In contrast to most occurrences in the western limb, however, both these pegmatoidal orthopyroxenites...orthopyroxenite unit, as is the case throughout most of the western limb, the Merensky reef at Winnaarshoek occurs |  | | Journal (article/letter/editorial) | | formation—a key to understanding processes of platinum enrichment J. A. Kinnaird, F. J. Kruger, P. A...Bushveld Complex hosts a number of substantial platinum-group element (PGE)-bearing chromitite layers...of the platinum-bearing Merensky Reef. Until 1982 only the Merensky Reef was mined for platinum, although...Until 1982 only the Merensky Reef was mined for platinum in the Bushveld Complex, although it has long...long been known that chromitites also host platinum-group elements (PGE).28 All the chromitites are enriched |  | | Journal (article/letter/editorial) | | the recovery of platinum group elements from Merensky Reef and UG2 at the Two Rivers mine on the Eastern...Eastern limb of the Bushveld Complex in South Africa Derek H. Rose 1 & K. S. Viljoen 1 & Antoine Mulaba-Bafubiandi...Complex is generally limited to the Western Bushveld. The recognition by mine management that another resource...Two Rivers platinum mine (TRP), is urgently required in order to extend the life of mine, presented an...processing . Merensky Reef . UG2 . Platinum-group minerals . Two Rivers Platinum mine Introduction The Bushveld |  | | Journal (article/letter/editorial) | | Platinum-group minerals in the Selukwe Subchamber, Great Dyke, Zimbabwe: implications for PGE collection...Natal, P.O. Box 375, Pietermaritzburg 3200, South Africa Abstract This paper presents the results of...of microprobe investigations of the Platinum-Group Elements (PGE) of the Selukwe Subchamber, Great Dyke...minerals have been indentified: bismuthotellurides (moncheite, maslovite, michenerite, kotulskite and polarite);...(cooperite, laurite, braggite and hollingworthite). Platinum Group Minerals (PGM) occur in three distinct textural |  | | Book | | EXPLORATION FOR PLATINUM-GROUP ELEMENTS DEPOSITS Mineralogical Association of Canada Short Course Series...OF CONTENTS Introduction xvi GEOCHEMISTRY OF PLATINUM-GROUP ELEMENTS 1. Magmatic Geochemistry of the...Mungall 1-34 2. The Aqueous Geochemistry of the Platinum Group Elements (PGE) in Surficial, Low-T Hydrothermal...Magmatic-Hydrothermal Environments 35-56 J.J. Hanley DESCRIPTIVE PLATINUM-GROUP ELEMENT ORE DEPOSIT MODELS – PRECIOUS-METALDOMINANT...Pt & Pd Deposits A. Wilde 145-161 DESCRIPTIVE PLATINUM-GROUP ELEMENT ORE DEPOSIT MODELS – BASE-METALDOMINANT |  | | Book | | chambers. I am grateful to the many colleagues in South Africa with whom I have explored and experienced the...been suggested for the Calamity Peak intrusion, South Dakota (Duke et al., 1988). 2.4. Magma mixing A...anorthosite layers, Dwars River, BushveM Complex, South Afi'Jca. The extreme degree of fractionation between...movements" (Parsons, 1979, p. 691). Aftershocks and local deformation occurred in Long Valley in apparent...earthquake which had an epicentre 400 km away. These local events were attributed to the development of approximately |  | | Book | | Extractive Metallurgy of Nickel, Cobalt and Platinum-Group Metals Frank K. Crundwell CM Solutions (Pty)...book describes extraction of nickel, cobalt and platinum-group metals. The starting point is ore-in-place...visiting many of the world’s nickel-, cobalt- and platinum-group metal extraction plants. We thank our hosts...colleagues. We thank them all most deeply. The platinum industry is traditionally secretive about publishing...the refining processes. Both Impala Platinum and Lonmin Platinum openly shared information, and for that |  | | Journal (volume) | | includes contact-type base metal sulphide- and platinum group element mineralization, which contains up...lithostratigraphy, igneous rocks, mineralogy, geochemistry, platinum group, copper, nickel, isotopes, Sm/Nd, genesis...anomaly, which connects these distant eastern and western parts of the complex (Fig. 1.2). The Näränkävaara...m thick and contains base metal sulphide- and platinum-group element (PGE) mineralization. It displays...in the Koillismaa Intrusion (Mustavaara Vanadium Mine) (Alapieti 1982; Juopperi 1977). The Layered Series |
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