 | | Journal (article/letter/editorial) | | 1007/s00126-012-0403-x ARTICLE The Oāokiep Copper District, Namaqualand, South Africa: a review of the geology with...Abstract The Oāokiep Copper District is the oldest formal mining area in South Africa. Between 1852 and...the 2,500 km2 area yielded two million tons of copper from 32 mines ranging in ore tonnages from 140...Koperberg Suite. Almost all of the copper in the Oāokiep District occurs in the Koperberg Suite, of which...it is one of only two world examples of economic copper mineralization in rocks of the anorthositeācharnockite |  | | Journal (article/letter/editorial) | | from tungsten deposits in western Namaqualand, South Africa: implications for ore genesis and the timing...W(Mo) deposits in the Okiep copper district in western Namaqualand, South Africa. Apparently, stratabound...granulite facies terrane in western Namaqualand, South Africa. Both epigenetic and syngenetic models have...located in the Okiep copper district of western Namaqualand, North Cape Province, South Africa, which is part...part of the extensive Namaqua Province in southern Africa (Fig. 1; Hartnady et al. 1985; Thomas et al. 1994) |  | | Journal (article/letter/editorial) | | rarity is bornite, a common mineral found in many copper deposits as massive lumps. The scarcity of bornite...collector community, especially the keen collector of copper minerals. The chemical formula for bornite is Cu5FeS4...metallic luster. On fresh surfaces, borniteās color is copper-red to pinchbeck-brown, but it will quickly tarnish...found that pinchbeck is the name of an alloy of copper and zinc that is used as imitation gold, so I assume...names including buntkupfererz, purple copper ore, variegated copper, erubescite, peacock ore, and horse-flesh |  | | Journal (article/letter/editorial) | | PETROGRAPHICAL CHARACTERISTICS OF THE KOPERBERG SUITE, SOUTH AFRICA -- AN ANALOGY TO MASSIF-TYPE ANORTHOSITES? ...of the Orange Free State, Bloemfontein 9301 (South Africa) (Received October 15, 1984; revision accepted...Petrographical characteristics of the Koperberg Suite, South Africa -- an analogy to massif-type anorthosites? Precambrian...3000 km 2 in the northwestern Cape Province (Namaqualand), South Africa. The intrusive suite is renowned...renowned for its associated magmatic copper sulphide deposits. Transgressive field relationships and the preservation |  | | Journal (article/letter/editorial) | | - M o mineralization in western Namaqualand, South Africa J.G. R a i t h Institut fiir Geowissenschaften...the western Namaqualand Metamorphic Complex, South Africa. It intruded synkinematically, with respect...Cu-bearing mafic intrusives in the west (Okiep C o p p e r District; L o m b a a r d et al., 1986 ). Tungsten...following paper, are also present in the Okiep C o p p e r District. Earlier studies concluded that these...tungsten deposits and their host rocks in the Okiep Copper District have been critically reinvestigated. The |  | CLIFFORD, T. N., BARTON, E. S., RETIEF, E. A., REX, D. C., FANNING, C. M. (1995) A Crustal Progenitor for the Intrusive Anorthosite--Charnockite Kindred of the Cupriferous Koperberg Suite, O'okiep District, Namaqualand, South Africa; New Isotope Data for the Country Rocks and the Intrusives. Journal of Petrology, 36 (1) 231-258 doi:10.1093/petrology/36.1.231 | Journal (article/letter/editorial) | | WITWATERSRAND, PRIVATE BAG 3, WITS 2050, JOHANNESBURG, SOUTH AFRICA "BERNARD PRICE INSTITUTE FOR GEOPHYSICAL RESEARCH...UNIVERSITY OF THE WITWATERSRAND, JOHANNESBURG, SOUTH AFRICA 'DIVISION OF EARTH, MARINE AND ATMOSPHERIC SCIENCE...SCIENCE AND TECHNOLOGY, CSIR, PRETORIA, SOUTH AFRICA ā¢DEPARTMENT OF EARTH SCIENCES, UNIVERSITY OF LEEDS...suggest mines have been established in the O'okiep District in the a crustal-melt source for the intrusive...metamorphism in the O'okiep District is The two principal copper-producing areas in South recorded by a Rb-Sr |  | Le Bras, Loic Y., Bolhar, Robert, Bybee, Grant M., Nex, Paul A. M., Guy, Bradley M., Moyana, Thabitha, Lourens, Paulien (2021) Platinum-group and trace elements in Cu-sulfides from the Loolekop pipe, Phalaborwa: implications for ore-forming processes. Mineralium Deposita, 56 (1). 161-177 doi:10.1007/s00126-020-01005-4 | Journal (article/letter/editorial) | | exsolution and local traces of chalcocite and covellite related to fluid alteration, whereas the second...Witwatersrand, Braamfontein, Johannesburg 2001, South Africa 2 Department of Geology, University of Johannesburg...2006, South Africa 3 Palabora Mining Company Limited, 1 Copper Road, Phalaborwa 1389, South Africa Despite...area of about ~ 18 km2 and is elongated in a north-south direction (Fig. 1). It was originally emplaced as...granites and gneisses of the Kaapvaal Craton, South Africa (Wu et al. 2011). Previous studies aimed at |  | | Book (edition) | | colours once they occur in their oxidised states: Copper minerals then show green, blue, and sometimes red...is cross-cut by a crack filled with secondary covellite (blue). Optically Similar Minerals of comparable...bornitechalcocite/covellite-tenorite and/or malachite plus azurite; native copper and cuprite are less...orange to brown Vonsenite strong, orange shades Covellite strong, yellowish brown to bluish violet grey...bright green gold-yellow, silver-white (Ag) to copper-red (Cu); 72.26 very light grey with yellowish |  | | Journal (article/letter/editorial) | | the center, and the Upper Layered Series in the south (Deer and Abbott, 1965; Elsdon, 1969). Each series...we chose the lowest exposure of gabbro at the northern end of Willow Ridge as the base of the Lower Layered...reticulate network of digenite and bornite (Fig. 5F). Covellite occurs as alteration of digenite along microcracks...MgO in KEH04 and KEH07 are depicted in Figure 9. Copper and S are linearly correlated, indicating that...averaging 86 percent gold (Fig. 12 and Table 6). Copper content ranges from 0 to 26 at. percent, Ag from |  | | Book (edition) | | Compounds, Carbides, Nitrides, Phosphides and Silicides Copper I/A.01-10 4 Silver I/A.01-20 6 Gold I/A.01-40 8...Sulphosalts II/A - Alloys and Alloy-like Compounds, with Copper, Silver, Gold and Nickel Algodonite II/A.01-10...Polarite Sobolevskite Cherepanovite Millerite Covellite Klockmannite Idaite Valleriite Tochilinite Vyalsovite... Selenium and Tellurium < 1:1, Tellurides with Copper, Silver and Gold Linnaeite II/D.01-20 320 Polydymite...Sb,Bi = x), Sulfosalts with Predominant Iron and Copper x = 2.0 Berthierite II/E.01-10 458 Wittichenite |  | | Journal (article/letter/editorial) | | Present address: Independence Group NL, PO Box 496, South Perth, Western 6 Australia 6951. 7 2 School...with 29 the presence of titaniferous magnetite. Copper, Au, Pt, Pd and S concentrations are low to 30...increase in 32 Fe2O3+TiO2+V2O5 concentrations. Copper grades up to 0.42 wt.% and Pt+Pd+Au grades to 2...46 mineralization in the Stella Intrusion, South Africa, whereas Navigator mineralization occurs 47...orogenic belt close to the borders of 130 Northern Territory, South Australia and Western Australia (Figure |  | Karykowski, Bartosz T., Maier, Wolfgang D., Groshev, Nikolay Y., Barnes, Sarah-Jane, Pripachkin, Pavel V., McDonald, Iain (2018) Origin of Reef-Style PGE Mineralization in the Paleoproterozoic Monchegorsk Complex, Kola Region, Russia. Economic Geology, 113 (6) 1333-1358 doi:10.5382/econgeo.2018.4594 | Journal (article/letter/editorial) | | famous Merensky reef in the Bushveld Complex of South Africa (e.g., Cawthorn, 2010), it is of particular...Ga, thus producing the Fennoscandian Shield of northern Europe (HƶlttƤ et al., 2008). In the Paleoproterozoic...pyrrhotite, chalcopyrite, pentlandite, and minor covelliteāthe latter commonly surrounding chalcopyrite (Fig...whereas broadly coeval komatiites and picrites from northern Finland have >30 ppm Zr (Hanski et al., 2001)...crosscutting relationships were also observed in the northern Bushveld Complex, where the voluminous, mafic |  | | Book (edition) | | OF OF SOUTH AFRICA MINES GEOLOGICAL SURVEY MINERAL RESOURCES OF REPUBLIC OF THE SOUTH AFRICA...Second World War, and partly as a result of it, South Africa experienced vast industrial expansion. This...official āhandbook on the mineral resources of South Africa, it has become necessary to revise, or rather...reason of the great diversity and magnitude of South African mineral deposits and local mining operations...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Book | | Salvador Porphyry Copper Deposit, Chile .................................. . Porphyry Copper Deposits in Island...Porphyry Copper Deposit, Bougainville, Papua New Guinea ......... . Genetic Models for Porphyry Copper Deposits...1.2.5 1.2.6 1.2.7 1.2.8 1.3 1.3.1 1.3.2 1.3.3 Copper-Bearing Breccia Pipes ............ . 22 23 24...Magnetite Deposits ............... 1.6.2 Manto-Type Copper Deposits .............. 64 66 1.7 67 Discussion.................. . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico .......................... |  | | Book | | Corporation of South Africa, the Chair of Economic Geology at Rhodes University, South Africa, and since...appointments at the Astrobiology Centre, University of New South Wales, Sydney, and the China University of Geosciences...which has included work in Europe, southern Africa, South East Asia, New Zealand, the southwest Pacific...Felsic Phase of the Bushveld Igneous Complex, South Africa . . . . . . . . . . . 4.3.6 The Sn-W Deposits.... . . . . . . . 4.4.4 Sabie-Pilgrimās Rest, South Africa . . . . . . . . . . . . . . . . . 4.4.5 Capricorn |  | | Book | | talc vug in 1997, is 1.7 cm long (Marty, 2004 ). AFRICA widely in Litchfield County, where good crystals...Mount Malosa, Chilwa alkaline province, Zomba district. "Illite" is the name of a series of incompletely...which they called the Bentley Lake Road occurrence, south of Bancroft. Sharp, flattened rhombohedral ilmenite...Girardville, itself 40 km northwest of Lac Saint-Jean in south-central Quebec, very large and sharp ilmenite Cl)...the town of Amsteg, subordinate drainages running south to Val Caverdiras; ilmenite rose-bearing clefts |  | | Conference Proceedings (Volume) | | org Cover photograph: View of the Aitik open pit copper mine in the very north of Sweden. Mining operations...million tonnes of ore containing 67 100 tonnes of copper, 51 700 tonnes of silver and 1,9 tonnes of gold...different types of Ni-laterite profiles from the northern Caribbean: a geochemical comparison . . ........charnockitic footwall of the Spruce Road deposit, South Kawishiwi intrusion, Duluth Complex, Minnesota,...Geochemistry of the Sakatti magmatic Cu-Ni-PGE deposit, northern Finland .................................... |  | | Book | | Billiton in London and the Geological Society of South Africa Trust. My colleagues at Wits were extremely...PGEbearing Merensky Reef, Bushveld Complex, South Africa. This unit and the ores within it can be altered...U-bearing conglomerate from the Witwatersrand Basin, South Africa. Quartz veins cutting this unit attest to the...of ore deposits as defined by the Australian and South African Institutes of Mining and Metallurgy. now...essentially only one element exists in the structure. Copper, silver, gold, and platinum are all characterized |  | | Book | | Pretorius 117 Sediment-Hosted Stratiform Deposits of Copper, Lead, and Zinc. . Lewis B. Gustafson and Neil...Lead Deposits and their Relationship to Red-Bed Copper and CarbonateHosted Lead-Zinc Deposits.A. Bjfirlykke...Bjfirlykke and D. F. Sangster 179 Porphyry Copper Deposits Part I. Geologic Settings, Petrology, and Tectogenesis...making a profit. Initially incorporated in the District of Columbia, the Publishing Company was reincorporated...whatever the origin of its magmas. It contains as much copper as nickel, a sign of progressing geochemical evolution |
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