 | 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 |  | | 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 |  | 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 |  | | 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. |  | | Report (issue) | | Series: Mineral Group: Forms a series with ilmenite. Ilmenite group. Occurrence: Forms during contact...Ural Mountains; in the Tazheran alkalic massif, west of Lake Baikal, Siberia. At Kimberley, Cape Province...Africa. From north of the Mahogany mine, Hartley district, Zimbabwe. Several other localities are known |  | OberthĂŒr, Thomas, Davis, Donald W., Blenkinsop, Thomas G., Höhndorf, Axel (2002) Precise UâPb mineral ages, RbâSr and SmâNd systematics for the Great Dyke, Zimbabweâconstraints 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 âconstraints 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) | | 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 |  | | Book | | Council Glossary of the minerals of the Lake District and adjoining areas B. Young NEWCASTLE UPON...siderite, Force Crag Mine, Braithwaite (MNS 4491) Back cover-'Daisy' gypsum, Birks Head Mine, Long Marton (MNS...Gill Mine, Caldbeck Fells (MNS 4492) (top right) Quartz, variety rock crystal, Carrock Fell Mine, Mosedale...(bottom left) Hematite, variety kidney ore, Nab Gill Mine, Boot (MNS 4490) (bottom right) ISBN O 85272 099...NG12 5GG Plumtree (060 77) 6111 Murchison House, West Mains Road, Edinburgh EH9 3LA 031-667 1000 Windsor |  | | Journal (article/letter/editorial) | | PRE-BULAWAYAN METAMORPHITES In the area south and west of Selukwe, Stowe (1968, pp.17--22; 1971, p.379)...Victoria; (9) Ghoko; (10) Gatooma-Hartley; (11) Gwanda; (12) Gwelo; (13) Lonely Mine; (14) Lower Gwanda; (15)...Tod's Hotel; (P) Topisi; (Q) Triangle---Chiredzi;(R) West Tuli. morphism, noted by Oldham {1968, pp.189--190)...successions are noted, viz. 12 km in the Bulawayo District (Amm, 1940), 24 km at Hunters Road, Gwelo (Macgregor...regions. The pattern is obscured by sediments in the west and a Pan-African metamorphic overprint in the north |  | | Journal (article/letter/editorial) | | Nickeliferous Archean Madziwa Igneous Complex, Northern Zimbabwe: Petrological Evolution, Magmatic Architecture... am bia 30°E 32°E 100 km Fig.2 Eo M P Zimbabwe craton E Harare Mr Mutare 19°S Bulawayo ...Introduction The Madziwa Igneous Complex in northern Zimbabwe comprises a regional group of nickeliferous, mafic-ultramafic...principal causal role in sulfide segregation at Madziwa mine and the camp was later cited as a type-example of...light of investigations carried out before final mine closure (including detailed mapping, walk-over surveys |  | | 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 |  | DâAgrella-Filho, Manoel S., Trindade, Ricardo I.F., Tohver, Eric, Janikian, Liliane, Teixeira, Wilson, Hall, Chris (2011) Paleomagnetism and 40Ar/39Ar geochronology of the high-grade metamorphic rocks of the JequiĂ© block, SĂŁo Francisco Craton: Atlantica, Ur and beyond. Precambrian Research, 185 (3) 183-201 doi:10.1016/j.precamres.2011.01.008 | Journal (article/letter/editorial) | | 008 Atlantica (Amazonian, West Congo-SĂŁo Francisco, Rio de la Plata and West Africa proto-cratons), Ur...Ur (Antarctica, Australia, India, Madagascar, Zimbabwe and Kaapvaal cratons) and Nena (North America,...craton (SFC), considered to be an extension of the West Congo craton (WC) in a pre-Atlantic conïŹguration...with the ulvospinel component oxidizing to form ilmenite at normal oxygen fugacities (Frost, 1991). At...metamorphism, enhanced diffusion allowed magnetite and ilmenite to form discrete, unmixed phases. The ubiquity |  | | Journal (article/letter/editorial) | | Post-caldera activity in the Alban Hills volcanic district (Italy): 40Ar/39Ar geochronology and insights...determination of mercury speciation and mobility in mine waste âChris Sladek and Mae Sexauer Gustin 927...sulfosalts of the Pongkor epithermal gold-silver deposit, West Java, IndonesiaâI. Wayan Warmada, Bernd Lehmann...Yeatmanite and magnussonite from the Garpenberg Norra mine, Bergslagen ore province, SwedenâPer Nysten Experimental...silicic volcanoâplutonic suites in the Archaean West Pilbara, AustraliaâJ.B. Smith Nitrogen distribution |  | | Journal (article/letter/editorial) | | Durlston Head, Dorset: calciostrontianire, 146. Hartley Birkett, Kirkby Stephen, Westmorland: jarosite...wo]framite, 995. Pengenna mine, St. Kew: meneghinite, 424. South Terras mine, St. Stephen-in Brannel:...plumbojarosite, li. West Turf Pits, Grassington: argentojarosite, li. WALES Benallt mine, Rhiw, Caernarvonshire:...celsian, 508. Clogau mine, Dolgelly, ~ier.ionethshire: tellurbismuth, 424. Vigra mine, Dolgelly, Merionethshire:...e c h o s l o v a k i a (~eskoslovensko) Plavno mine, Krus'~ tlory, Bohemia: stannian andradite, 379 |  | | Journal (article/letter/editorial) | | Beers believed that these diamonds had come from west of the Motloutse headwaters, across the watershed...com). D = Damtshaa Mine, G = Ghag- hoo Mine, J = Jwaneng Mine, K = Karowe (AK06) Mine, Kx = KX36 prospect... L = Letlhakane Mine, M = Martinâs Drift (Lerala) kimberlites, O = Orapa (AK01) Mine, T = Tsabong M1...of two of the kimberlites of the Damtshaa diamond mine (Fig. 1), small silcrete artefacts from the earliest...purposes (Campbell et al. 2010). Another specularite mine (AD10001300) is located at Matsiloje near Francistown |  | | Journal (article/letter/editorial) | | north-eastern corner of the English Lake District, about 2 miles west of Mosedale, near the junction of the...the area has been undertaken by Kingsbury and Hartley (1955, 1956a, 19566, 1960). OUTLINE OF THE GEOLOGY...contact. The Carrock Fell gabbro forms part of an east-west trending intrusive complex consisting of a suite...consists essentially of labradorite, augite, and ilmenite, with accessory apatite, magnetite, and quartz...clinozoisite are typically found surrounding the ilmenite grains. The granite from the southern part of |  | | Book (edition) | | hematite, rutile, and ulvöspinel separating from ilmenite). Fe-, Cu-, and Ag-containing sulfides are even...developing crystal. Thus, oxides such as chromite, ilmenite, and magnetite plus PGE alloys separate from the...examples are, for instance, surplus Fe or Ti in ilmenite or extra Fe in Cu-sulfides, such as chalcopyrite...oriented exsolution lamellae of rutile, ulvöspinel or ilmenite may occur in titanomagnetite. In other cases,...Finely lamellated and spindle-like exsolution of ilmenite (brownish grey) in hematite crystal (lighter grey) |  | | Book | | Gertisser, Peter Golley, David Green, Alan Hart, Jack Hartley, John Holbrook, Nigel Hoppe, Jana Horak, Mike Howe...meneghinile Pengenna mine,St Kew,Cornwall; Shallowfield Bridge,SouthMolton,Devon Tynebottom mine,Alston.CUm~ria...CUm~ria mercury Chatsworth mine,Grassinglon, Yorkshire Severallocalities in theLakeDistrictandComw melacinnabar...theLakeDistrictan:iCorrr::a!I natrojarosite Wanlhwaite mine,StJohn'sin theVale,Cumbria SouthTerrasmine,StStephen-in-Brannel...Cumbria pharmaco!ite Wanlhwaite mine,StJohn'sin theVale,Cumbria Chatsworth mine,Grassington, Yorkshire p:cropharmacolne |  | | Report (issue) | | 195 Zambia . . . . . . . . . . . . . . . . 203 Zimbabwe . . . . . . . . . . . . . . . 213 Other Countries...of diversified experience in mineral exploration, mine design, development, and operations, as well as...chromite resulting from cutbacks in South Africa and Zimbabwe, and of phosphate rock owing to a lower output...platinum-group metals (PGM), titanium minerals (ilmenite and rutile), vanadium, vermiculite, and zircon...cobalt, copper, and diamond; Zambia for cobalt; and Zimbabwe for chromium and lithium. U.S. exports to Africa |  | | Book | | Sometimes, as observed by Mr. C. S. Wilkinson at a mine near Wagga Wagga, the plates are so exceedingly...was found early in 1876, at the " Wapping Butcher" Mine, near Parkes. For the accounts of Nos. 1 and Nos...Holtermann's mine 100 cwt. of gold had been raised in 200 cwt. of stuff. From the same mine a slab of vein-stuff...for the gold from 415 tons of vein-stuff from this mine were 16,279-63 ozs., value ÂŁ63,234 12s. Krohmann's... raised 436 tons 9 cwt. of stuff, for which the mine returns were 24,079 ozs. 8 dwts. of gold, value |  | | Journal (article/letter/editorial) | | the Teign Estuary, Devon, UK. Geoscience in South-West England, 12, 339-350. Previous mineralogical and...Detrital minerals present include: barite, rutile, ilmenite, zircon, monazite, pyrite, cassiterite, sphalerite...Both episodes of mining have released particulate mine waste, which has accumulated within the estuarine...mining waste remaining for millennia, providing the mine waste is not chemically mobile or physically/biologically...sediments throughout the southwest of England with mine waste being released into the environment as particulate |  | | Book | | UâPb Baddeleyite Ages of MaïŹc Dyke Swarms of the West African and Amazonian Cratons: Implication for Their...from doleritic dykes in the southern part of the West African Craton. The following swarms are distinguished:...provides the ïŹrst robust LIP bar code for the southern West African Craton, and the results are used in a new...Western Mongolian Altai, Eastern Junggar, North and West Bank of Balkhash, Western Junggar, and Chingis-Taerbahatai...and oxygen fugacity for the coexisting magnetiteâilmenite solid solution pairs which yielded an equilibration |  | | Book | | MLP. (Michael P. Minerals of the English Lake District Caldbeck Fells Cumbria. Caldbeck. Mineral deposts...largely of debris washed down fromthe Roughton Gill mine dumps under Iron Crag C O N T E N INTRODUCTION...between Iron Crag on the east and Balliway Rigg on the west. Mineral veins crossing the gill have been worked...renowned. CALDBECK FELLS MINING DISTRICT The Caldbeck Fells mining district oceupies approxiâ mately 25sqkm...25sqkm in the northâeast of the English Lake District, some 12 km northânorthâeast of Keswick. Before 1974 |  | | Report (issue) | | each country having a major chromite deposit or district--------------------------------7. By economic...especially South Africa and Zimbabwe. âą Eight industrialized countries4 that mine little or no chromite have...chromium (in the form of ores, 3 A captive mine is a mine that produces solely for the parent company...Japan, Norway, Spain, Sweden, the United States, and West Germany. 3 âą âą âą âą âą âą 5 sources of chromite...profit-motive criteria would normally result in mine closure. Chromite supplies have been disrupted. |  | 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) | | The magnetite grains with exsolved fine laths of ilmenite at centers are referred to as central magnetite...magnetite grains are commonly surrounded by blebs of ilmenite and magnetite that contain the majority of the...the alteration event that produced the blebby ilmenite and magnetite, led to the more primary PGM being...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 |
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