 | | Journal (article/letter/editorial) |
| composition of molybdenite from tungsten deposits in western Namaqualand, South Africa: implications for...W(Mo) deposits in the Okiep copper district in western Namaqualand, South Africa. Apparently, stratabound...mineralization (Fe-rich wolframite with accessory molybdenite) occurs in foliation-parallel quartz veins in...granulite facies terrane in western Namaqualand, South Africa. Both epigenetic and syngenetic models have...65.3% WO3 were mined between 1941 and 1956. Molybdenite is a common accessory ore mineral but was never |
 | | Journal (article/letter/editorial) |
| 1007/s00126-012-0403-x ARTICLE The O’okiep Copper District, Namaqualand, South Africa: a review of the geology with...Abstract The O’okiep 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 O’okiep District occurs in the Koperberg Suite, of which...it is one of only two world examples of economic copper mineralization in rocks of the anorthosite–charnockite |
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| granulite facies transition in the Okiep Copper District, South Africa J.G. Raith Institute of Geological...granulite amphibolite facies transition in the Okiep Copper District in western Namaqualand. Low-pressure mafic...(Khurisberg Subgroup) in the southern granulite facies Okiep domain; they include low-MgO as well as Mg-rich...volcano-sedimentary rocks of the Lammerhoek Subgroup in the northern Steinkopf domain. All metabasites were metamorphosed...low-P terranes such as western Narnaqualand, South Africa is of special interest. High palaeo- geothermal |
 | | 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 |
 | | Journal (article/letter/editorial) |
| com/locate/lithos Low-rhenium molybdenite by metamorphism in northern Sweden: Recognition, genesis, and...28 September 2005 Abstract Re–Os dating of molybdenite is an accurate means to date intrusions and intrusion-related...using the model age or isochron approach. But, molybdenite has a new niche in the greenschist- to granulite-facies...metamorphic environment. Re– Os ages for metamorphic molybdenite may be used to construct regional metamorphic...multiple molybdenite separates extracted from single, petrographically-characterized molybdenite occurrences |
 | 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 •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 |
 | | Journal (article/letter/editorial) |
| Australia (Stacey and Kramers, 1975); the Okiep copper district of Namaqualand, Namibia (Clifford et al...Scotia Eastern Alps Northern Kazakhstan Central Namibia Okiep district New South Wales Karnataka Quebec...Moose River Schellgaden Stepnyak Damara orogen Okiep Broken Hill Kolar Sigma 1 GA Country Locality...Schellgaden Schellgaden Stepnyak Damara orogen Okiep Broken Hill Kolar Sigma Sigma Pascalis Siscoe McIntyre...et al. (1995) for the Okiep district; although tungsten mineralization at Okiep is slightly younger than |
 | | Book (edition) |
| colours once they occur in their oxidised states: Copper minerals then show green, blue, and sometimes red...Pressure twins are commonly found in graphite or molybdenite, where they are easily identified. Optical properties...folded like paper. Left: Pressure twins in molybdenite. Penetration twins consist of two or more crystals...layered molybdite (olive to brown pleochroism) and molybdenite (grey bireflectance). Sedimentary Environments...tenorite and/or malachite plus azurite; native copper and cuprite are less common in this suite. Right |
 | | 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 ‘handbook 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; |
 | | Report (chapter) |
| geochronology and tectonic evolution of southern Africa R. E. H A N S O N Department o f Geology, Texas...Abstract: The Precambrian foundation of southern Africa consists of Archaean cratonic nuclei surrounded...present eastem and western margins of southern Africa. Coeval deformation in the interconnecting, transcontinental...Proterozoic geochronology and tectonic evolution of Africa south of the Equator (Fig. 1), emphasizing broad patterns...the Proterozoic tectonic framework of southern Africa, but there are still many gaps in our knowledge |
 | | 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... Selenium and Tellurium < 1:1, Tellurides with Copper, Silver and Gold Linnaeite II/D.01-20 320 Polydymite...Safflorite Rammelsbergite Pararammelsbergite Molybdenite Jordisite Tungstenite Berndtite Melonite Moncheite...Sb,Bi = x), Sulfosalts with Predominant Iron and Copper x = 2.0 Berthierite II/E.01-10 458 Wittichenite |
 | | 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 .................................... |
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| 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 .......................... |
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| 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)...Beiley collected molybdenite specimens showing crystals to 6 cm (see this entry for Molybdenite), and in a |
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| 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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| 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-Pilgrim’s Rest, South Africa . . . . . . . . . . . . . . . . . 4.4.5 Capricorn |
 | | Book |
| Germany Maarten J. de Wit, Port Elizabeth, South Africa François M. Roure, Rueil-Malmaison, France ...borders of Namibia and South Africa. They were split up in the Mesozoic during the south Atlantic Ocean opening”...Ortelius was the first to recognize the match of the South American and African Atlantic margins (Ortelius...translated to ‘if comparisons are made between Asia, Africa and Europe, it is clear that different areas in...Kontinente und Ozeane, Alfred Wegener considered South America, Africa, India and Australia as the main parts of |
 | | Thesis/Dissertation |
| from the Namaqualand pegmatite belt, Northern Cape, South Africa by Minenhle Sinethemba Maphumulo Dissertation...Namaqua-Natal Metamorphic Province (NNMP) in Southern Africa at ca. 1 Ga. The central part of the belt is characterised...Namaqua-Natal Metamorphic Province (NNMP) in southern Africa hosts the 450 km long and 40-50 km wide Namaqualand...Namaqua-Natal Metamorphic Province (NNMP) in Southern Africa (Fig. 1.5; Hugo, 1970; Schutte, 1972; Thomas et...5). Fig. 1.5: Map showing a close up of the Northern Cape province with the Orange River pegmatite belt |
 | | Book |
| North American Craton (less Greenland Shield) 1.6.6 South American Craton 1.6.7 African Craton 1.6.8 Indian...Wisconsin and Michigan 2.6.7 Wyoming Uplift 2.7 South American Craton 2.7.1 Guiana Shield 2.7.2 Central...Central Brazil Shield 2.8 African Craton: Southern Africa 2.8.1 Kaapvaal Craton 2.8.2 Limpopo Mobile Belt...8.3 Zimbabwe Craton 2.9 African Craton: Central Africa 2.10 African Craton: West African Craton and Trans-Saharan...2.11.1 Dharwar Craton 2.1 1.2 Granulite Domain (South Indian Highlands) 2.11.3 Eastern Ghats Belt 2.11 |
 | | Book |
| North American Craton (less Greenland Shield) 1.6.6 South American Craton 1.6.7 African Craton 1.6.8 Indian...Wisconsin and Michigan 2.6.7 Wyoming Uplift 2.7 South American Craton 2.7.1 Guiana Shield 2.7.2 Central...Central Brazil Shield 2.8 African Craton: Southern Africa 2.8.1 Kaapvaal Craton 2.8.2 Limpopo Mobile Belt...8.3 Zimbabwe Craton 2.9 African Craton: Central Africa 2.10 African Craton: West African Craton and Trans-Saharan...2.11.1 Dharwar Craton 2.1 1.2 Granulite Domain (South Indian Highlands) 2.11.3 Eastern Ghats Belt 2.11 |
 | | Book |
| knowledge and understanding of the Archaean geology of South India. Among his pioneering works are studies of...well-preserved Archaean terrains, such as in the South Indian shield, and to build up and test models...Mineral Development of the Karnataka and Chitradurga Copper Corporation. He was responsible for starting several...ventures to exploit chromite, vii iron, manganese, copper, bauxite and clay deposits. It is a measure of...CONTRIBUTORS C.R. Anhaeusser, Witwatersrand, 1 Africa. Economic Geol.ogy Research Unit, University of |
 | | 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 |
 | | Report (volume) |
| Australia, and their correlation with Antarctica South Asia within the Gondwanaland ensemble DASGUPTA,...perspectives on accretion and deformation in the northern East African Orogen and the assembly of Gondwana...geochronology and tectonic evolution of southern Africa 1 57 77 93 131 145 169 203 231 247 271 289...Circum-East Antarctic, N AM: North America, S AM: South America. PREFACE Australia and Gondwanaland This... 1.7 Ga, and that they have been joined to the South Australian Craton since at least c. l.5 Ga, although |
