 | | 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 world’s 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) | | 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...Mineralogically, most of the Pd and Rh is hosted in pentlandite, whereas Pt is dominantly present in the form...Æ Main Sulfide Zone Æ Great Dyke Æ Hartley Platinum Mine Æ Zimbabwe Introduction Deposits of platinum-group...Bushveld Complex, South Africa). The Great Dyke of Zimbabwe (Fig. 1) constitutes the world’s second largest |  | | Journal (article/letter/editorial) | | Bushveld Complex, South Africa, and Great Dyke, Zimbabwe Thomas Oberthür Bundesanstalt für Geowissenschaften...Complex of South Africa and the Great Dyke of Zimbabwe. Samples were obtained underground, from core...variable proportions of Pd and Rh are hosted in pentlandite. Pt–Fe alloys, sperrylite, and most PGE-sulfides...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 |  | Piña, R., Gervilla, F., Barnes, S.-J., Oberthür, 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 world’s second largest resource of platinum-group...assemblage of the MSZ comprises pyrrhotite, pentlandite, chalcopyrite, and minor pyrite. Recently, several...other trace element contents in pyrite from the Hartley, Ngezi, Unki, and Mimosa mines of the Great Dyke...clusters of crystals mostly within chalcopyrite and pentlandite, in some cases in the form of symplectitic intergrowths |  | | Journal (article/letter/editorial) | | in the oxidized Main Sulfide Zone, Great Dyke, Zimbabwe Marek Locmelis & Frank Melcher & Thomas Oberthür...Great Dyke mafic/ultramafic layered intrusion of Zimbabwe, economic concentrations of platinum-group elements...solution in relict sulfides (dominantly Pd in pentlandite, up to 6,500 ppm Pd and 450 ppm Pt), (3) as secondary...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; Oberthür et al. 2002) |  | 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 OBERTHÜR§, 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 world’s second largest |  | | 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...Sulfide Zone Æ Placers Æ Great Dyke Æ Hartley Platinum Mine Æ 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 |  | Stribrny, B., Wellmer, F. -W., Burgath, K. -P., Oberthür, 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 |  | Li, Chusi, Ripley, Edward M., Oberthür, Thomas, Miller, James D., Joslin, Gregory D. (2008) Textural, mineralogical and stable isotope studies of hydrothermal alteration in the main sulfide zone of the Great Dyke, Zimbabwe and the precious metals zone of the Sonju Lake Intrusion, Minnesota, USA. Mineralium Deposita, 43 (1) 97-110 doi:10.1007/s00126-007-0159-x | Journal (article/letter/editorial) | | alteration in the main sulfide zone of the Great Dyke, Zimbabwe and the precious metals zone of the Sonju Lake...isotopes . Great Dyke . Sonju Lake Intrusion . Zimbabwe . USA Introduction The debate on the origin of...Lake Intrusion and by pyrrhotite, chalcopyrite, pentlandite, and pyrite in the Great Dyke. However, the PGE-rich...intruded Archean granites and greenstone belts of the Zimbabwe craton (Worst 1960; Wilson 1996; Fig. 1a). Two...disseminated sulfides (pyrrhotite + chalcopyrite + pentlandite ± pyrite) are closely associated with interstitial |  | | Book | | Redistribution in the Main Sulfide Zone of The Great Dyke, Zimbabwe T. Oberthür, 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. Oberthür, F. Melcher INTRODUCTION GEOLOGICAL |  | Maier, W.D., Määttää, S., Yang, S., Oberthür, T., Lahaye, Y., Huhma, H., Barnes, S.-J. (2015) Composition of the ultramafic–mafic contact interval of the Great Dyke of Zimbabwe at Ngezi mine: Comparisons to the Bushveld Complex and implications for the origin of the PGE reefs. Lithos, 238. 207-222 doi:10.1016/j.lithos.2015.09.007 | Journal (article/letter/editorial) | | ultramafic-mafic contact interval of the Great Dyke of Zimbabwe at Ngezi mine: Comparisons to the Bushveld Complex and...ultramafic-mafic contact interval of the Great Dyke of Zimbabwe at Ngezi mine: Comparisons to the Bushveld Complex and...contact interval of the Great Dyke of Zimbabwe at Ngezi T mine: Comparisons to the Bushveld Complex...NU 1. SC R Sulfide Zone. The Great Dyke of Zimbabwe is one of the world’s largest layered mafic-ultramafic...Archaean granitoids and greenstone belts of the Zimbabwe craton at T about 2575 Ma (Mukasa et al., 1989; |  | | Journal (issue) | | Geological Society of Zimbabwe Newsletter February, 2007 Geological Society of Zimbabwe Newsletter February...SOCIETY OF ZIMBABWE, P.O. BOX CY 1719, CAUSEWAY, HARARE • Geological Society of Zimbabwe Newsletter...Department, University of Zimbabwe ……………………………………… The Geological Survey of Zimbabwe ………………………………………………… Mining...…………………………………………………… …. 22 2 Geological Society of Zimbabwe Newsletter February 2007 Editorial All the very...endeavours is critical. 3 Geological Society of Zimbabwe Newsletter February 2007 We continued to pursue |  | | Journal (article/letter/editorial) | | Sulphide Zone (MSZ) mineralization of the Great Dyke, Zimbabwe. The PGE in the sulphide zone occur dominantly... The mothballing of the Hartley mining operation on the Great Dyke, Zimbabwe, at a time of historically...(pyrrhotite and pyrite), Cu (chalcopyrite) and Ni (pentlandite) and are present mostly as small, discrete PGE...associated base-metal sulphides—particularly pentlandite— can also carry appreciable PGE contents in solid...of partly oxidized Pt mineralization at Hartley mine, Zimbabwe.20 Duyvesteyn, Liu and Duyvesteyn 20 reported |  | | Report (issue) | | interest in the geo logy and mineral resources of Zimbabwe which followed the removal of United Nations sanctions...original Bulletin is the insertion of Table IIIA, Zimbabwe Mineral Production and Value, on page 114A. Due...for views of Wankie Colliery and the Trojan nickel mine, and to the Photographic Section of the Ministry...Trojan Nickel Mine, near Bindura. facing page 33 V The Great Dyke. Northern part of the Hartley Complex...Complex. VI Chrome seam in the Great Dyke, Vanad Mine. VII Lower Karoo Landscape. No. 1 Colliery, Wankie. |  | Oberthür, Thomas, Davis, Donald W., Blenkinsop, Thomas G., Höhndorf, Axel (2002) Precise U–Pb mineral ages, Rb–Sr and Sm–Nd systematics for the Great Dyke, Zimbabwe—constraints on late Archean events in the Zimbabwe craton and Limpopo belt. Precambrian Research, 113 (3) 293-305 doi:10.1016/s0301-9268(01)00215-7 | Journal (article/letter/editorial) | | for the Great Dyke, Zimbabwe —constraints on late Archean events in the Zimbabwe craton and Limpopo belt...Department, Uni6ersity of Zimbabwe, PO Box MP 167, Mount Pleasant, Harare, Zimbabwe Accepted 23 August 2001...interpretations of the crustal development of the Zimbabwe craton. Close temporal links between the intrusion...granitoids (Chilimanzi and Razi suites) of the Zimbabwe craton are indicated by the new precise age data...of the Northern Marginal Zone over the Zimbabwe craton. A west-to-east diachroneity in both thrusting |  | | Journal (article/letter/editorial) | | Main Sulfide Zone at Unki Mine, Shurugwi Subchamber of the Great Dyke, Zimbabwe: Evidence from Petrography...element (PGE) occurrence in the Great Dyke of Zimbabwe, the Main Sulfide Zone (MSZ), is a tabular stratabound...silicate composition study across the MSZ at Unki Mine in the Shurugwi Subchamber was conducted to help...the mineralization. The PGE-enriched zone at Unki Mine is a ~10 m thick package of rocks ranging from gabbronorites...of sulfide mineralization likely occurred at Unki Mine with primary sulfides occurring in association with |  | | Journal (article/letter/editorial) | | of the total Pd occurs as a solid solution in pentlandite. The three samples have similar Pt PGM modal...from the Paleoproterozoic Ubendian gneiss to the west of the Kapalagulu Intrusion to identify the metamorphic...the Pd previously held in solid solution in pentlandite, to determine if any Pt and Pd oxides are present...There are other less well-known intrusions to the west of Lake Tanganyika in the Democratic Republic of...and nettextured pyrrhotite, chalcopyrite, and pentlandite. In places there are intervals of chromitite |  | | 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, Oberthür [3]...inclusions such as PGE-rich monosulfide, PGE-rich pentlandite, and Ni–Fe–(As)-rich laurite. The authors suggested...ite vein-disseminated ores from the Komsomolsky mine of the Talnakh and Oktyabrsk deposits, Noril’sk...bushveld complex, South Africa, and Great Dyke, Zimbabwe. Minerals 2018, 8, 581. [CrossRef] Stepanov, S |  | Helmy, Hassan M., Ballhaus, Chris, Berndt, Jasper, Bockrath, Cornelia, Wohlgemuth-Ueberwasser, Cora (2007) Formation of Pt, Pd and Ni tellurides: experiments in sulfide–telluride systems. Contributions to Mineralogy and Petrology, 153 (5) 577-591 doi:10.1007/s00410-006-0163-7 | Journal (article/letter/editorial) | | monosulfide solid solution (mss), i.e. pyrrhotite, pentlandite, and chalcopyrite (Garuti and Rinaldi 1986; Helmy...magmatic occur with sulfides like pyrrhotite, pentlandite, chalcopyrite, and pyrite, which are by no means...Ni content in pyrrhotite in equilibrium with pentlandite was never calibrated quantitatively as a thermometer...bismuthotellurides; courtesy D. Holwell 2006), Hartley platinum mine, Great Dyke (Pt-dominated bismuthotellurides;...the stratiform PGE horizons in the Great Dyke, Zimbabwe (Oberthür et al. 2003). Solid solution along |  | | Report (issue) | | PETROLEUM Suite 1210, 3400 de Maisonneuve Boulevard West Montréal, Québec, 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 world’s second largest reserve |  | | Journal (article/letter/editorial) | | the Freetown Layered Intrusion in Sierra Leone, West Africa, since 1926 and have been extracted from...magmas that intruded into the Archean rocks of the West African Shield during the initial rifting of the...disseminated chalcopyrite, bornite, chalcocite, pentlandite, and pyrrhotite about 50 μm in size with rare...(Bowles 2000b). At Mateki, the ridge is drained to the west by the Alako river and to the east by the Big Water;...that rises gently to Mateki Ridge (Fig. 1) to the west and descends towards Big Water to the east, the |  | | Book (edition) | | trillings, polysynthetic Löllingite Niggliite Pentlandite Reflection Colour & Ø Reflectance Pleochroism... 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, Çayeli, Rize Province, Black Sea Region, Turkey...argentite reaction rim (greenish grey; arg); Monte Narba Mine, San Vito, Cagliari Province, Sardinia, Italy; PPL |  | Barnes, Sarah-Jane, Prichard, Hazel M., Cox, Richard A., Fisher, Peter C., Godel, Belinda (2008) The location of the chalcophile and siderophile elements in platinum-group element ore deposits (a textural, microbeam and whole rock geochemical study): Implications for the formation of the deposits. Chemical Geology, 248 (3) 295-317 doi:10.1016/j.chemgeo.2007.08.004 | Journal (article/letter/editorial) | | siderophile and chalcophile element distributions in pentlandite, chalcopyrite and pyrrhotite from platinumrich...concentrated in both pentlandite and pyrrhotite. In addition to these elements pentlandite concentrates Ni...(Busveld Complex, South Africa and Great Dyke, Zimbabwe) ∼ 30 to 60% of the siderophile elements (except...(except Pt and Au) are present in pentlandite, pyrrhotite and chalcopyrite. The balance is found in platinum-group...elements; Platinum-group elements; In-situ; Pentlandite; Pyrrohoite; Chalcopyrite 1. Introduction Based |  | Dare, Sarah A. S., Barnes, Sarah-Jane, Prichard, Hazel M., Fisher, Peter C. (2011) Chalcophile and platinum-group element (PGE) concentrations in the sulfide minerals from the McCreedy East deposit, Sudbury, Canada, and the origin of PGE in pyrite. Mineralium Deposita, 46 (4) 381-407 doi:10.1007/s00126-011-0336-9 | Journal (article/letter/editorial) | | Magmatic sulfide deposits consist of pyrrhotite, pentlandite, chalcopyrite (± pyrite), and platinum-group...extraction of the PGE. Typically, pyrrhotite and pentlandite host much of the PGE, except Pt which forms Pt...sulfarsenide PGM, rather than pyrrhotite and pentlandite, are the main carrier of PGE, probably as the...Park Place, Cardiff CF10 3AT, UK pyrrhotite, pentlandite, and surprisingly in pyrite. This indicates that...North Range of Sudbury. Palladium is present in pentlandite and, together with Pt, form PGM such as (PtPd)(TeBi)2 |  | | Report (issue) | | ruthenium and osmium are hard, brittle and almost pentlandite, or in PGE-bearing accessory minerals (PGM)....proportions of individual PGE within a deposit or a district. processes are also known but these are of relative...volume per cent) sulphides, chiefly pyrrhotite, pentlandite and cha lcopyrite. Although the processes responsible...to Iiquids not able to be mixed together. 5 www. Mine ra Is UK. corn w Platinum . Iii -~ ~ . , ...• • Munn ~ Munn\ A i.11Ti A ~ Kam bald a District r t S'al Rad o. .. D~~e) ~--· eld Complex |
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