 | | Journal (article/letter/editorial) | | Low-P/high-T metamorphism in the Okiep Copper District, western Namaqualand, South Africa J . G . R A I T H1 AN...9EH Edinburgh, UK A B S TR A C T The Okiep Copper District, part of the 1.2–1.0 Ga high-grade terrane...quartz-bearing pelites are characterized either by garnet+cordierite coexisting with sillimanite/biotite, or by b...Kibaran high-grade metamorphism in the Okiep Copper District is thermally punctuated and (b) reaction...high-temperature metamorphism; Namaqualand, Okiep Copper District; polymetamorphism; thermobarometry. I NTR |  | | Journal (article/letter/editorial) | | University of the Witwatersrand, Johannesburg, South Africa e Department of Earth Sciences, Parks Road,...Anglo-American Mining Corporation, Aggeneys, Northern Cape, South Africa Received 19 January 2006; received in...and “wraps” the Archaean Kaapvaal Craton to the south and west. The Orogen includes the western ultra-hightemperature...Orogen wraps the Archaean Kaapvaal Craton to the south and west, and is truncated by the Neoproterozoic...Small inset map shows position in southern Africa. C—Cape Fold Belt (Triassic), D/G/M—Damaran/Gariep/Mozambique |  | | 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 |  | | 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) | | 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) | | Cu-sulphide ores at Carolusberg and East Okiep, Namaqualand, South Africa Received: 12 April 1999 / Accepted:...Abstract Cu-sulphide ores at Carolusberg and East Okiep have Cu/Ni ratios of up to 80, an order of magnitude... due to the paucity of refractory ores in the district. Assimilation of Cu-rich country rocks during...The Cu-sulphide ores of the Okiep district of Namaqualand, South Africa (Fig. 1), remain one of the more...more enigmatic mineral deposits in southern Africa. The ores are hosted by the pyroxenitic and, to a |  | | Journal (article/letter/editorial) | | Springer-Verlag 1976 The Copper Deposits of the O'Okiep District, South Africa: New Data and Concepts E...Ltd., Springbok, 8240, South Africa The copper deposits of the O' okiep District rank amongst the top...extension of the 1200 m.y. Kibaran orogenic belt. Copper mineralization is linked to cross-cutting bodies...exsolution lamellae contain up to 14% ZnO. The copper sulphides occur as granular aggregates with silicates...activities were commenced The Copper Deposits of the O' okiep District ~/'~I Fig. I. Sketch map |  | | Journal (article/letter/editorial) | | UNIVERSITY OF THE WITWATERSRAND, JOHANNESBURG, SOUTH AFRICA 2 RESEARCH SCHOOL OF EARTH SCIENCES, THE AUSTRALIAN...flanking the Archaean Kaapvaal Craton of southern Africa. Previous isotopic dating in the region suggests...Namaqualand, South Africa JOURNAL OF PETROLOGY VOLUME 40 The study area The Okiep Copper District (OCD)...(OCD) in the Northern Cape Province of South Africa flourished as a copper mining district for some 140 years...Craton in southern Africa (Fig. 1). Extensions of this orogenic belt elsewhere in Africa are referred to |  | | Journal (article/letter/editorial) | | 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 |  | Yuhara, M., Miyazaki, T., Ishioka, J., Suzuki, S., Kagami, H., Tsuchiya, N. (2002) Rb-Sr and Sm-Nd Mineral Isochron Ages of the Metamorphic Rocks in the Namaqualand Metamorphic Complex, South Africa. Gondwana Research, 5 (4) 771-779 doi:10.1016/s1342-937x(05)70912-6 | Journal (article/letter/editorial) | | Rocks in the Namaqualand Metamorphic Complex, South Africa M. Yuharal, T. Miyazaki2,J. Ishioka3, S. Suzuki3...rocks in the Namaqualand Metamorphic Complex, South Africa. The metamorphic rocks give the Rb-Sr mineral...whole-rock - mineral isochron age, Namaqualand, South Africa, granulite. Introduction The Namaqualand Metamorphic...southwestern margins of the Kaapvaal Craton of southern Africa. It consists of various granitic intrusive suites...metamorphic grades decrease towards the north and the south. The zone C rocks are characterized by the upper |  | | Journal (article/letter/editorial) | | Springer-Verlag 1983 The Copper-Bearing Basic Rocks of Namaqualand, South Africa J. R. Mclver and T. S....Johannesburg B. de V. Packham O'okiep Copper Company Limited Nababeep Copper mineralisation is associated with...irregularly-shaped bodies within the gneissic terrain of the Okiep District. These basic rocks comprise the so-called Koperberg...constitute one of the three major copper producers in South Africa. While a metasomatic origin was briefly...the geology of the Okiep Copper District (Fig. 1) and sevThe existence of the copper-bearing eral theories |  | | Journal (article/letter/editorial) | | Mesoproterozoic Namaqua-Natal Province of Southern Africa W.P. Colliston a , D.H. Cornell b , A.E. Schoch...Department of Geology, University of the Free State, South Africa Department of Earth Sciences, Gothenburg University...and 2). The Grünau terrane consists of garnet-cordierite gneisses, calcsilicate rocks and metavolcanites...to the left represents the extent of the Okiep Copper District. Inset map lower right highlights the Hartbees...hornblende with a little sphene and pinitised cordierite as well as opaque minerals (2%). 4. Methods Zircon |  | 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) | | METAMORPHIC COMPLEX, SOUTH AFRICA J.F.A. DIENER Department of Geological Sciences, University of Cape Town, Private...7701, South Africa. e-mail: johann.diener@uct.ac.za © 2014 June Geological Society of South Africa ABSTRACT...Mesoproterozoic Namaqua Metamorphic Complex (NMC) of southern Africa borders the southern and western edges of the Kalahari...reconstructions in e.g. Jacobs et al., 2008). In southern Africa, the western NMC is proposed to consist of a number...low-pressure granulites that predominate the Garies and Okiep terranes (Waters and Whales, 1984; Waters, 1986a; |  | | Journal (article/letter/editorial) | | mobile belt along the Orange (Gariep) River, South Africa W.P. Colliston and A.E. Schoch Department of...the Free State, PO Box 339, Bloemfontein 9300, South Africa e-mail: colliswp.sci@mail.uovs.co.za; aesc@iafrica...aesc@iafrica.com © 2006 September Geological Society of South Africa ABSRACT Two periods of deformation have been...2819D-Dabenoris 2819COnseepkans, Geological Survey of South Africa, 1972, based on mapping done from 1941 to 1943;...correlation. Subsequent detailed mapping at scales SOUTH AFRICAN JOURNAL OF GEOLOGY, 2006, VOLUME 109 PAGE |  | | Journal (article/letter/editorial) | | and semi-pelitic granulites from Namaqualand, South Africa underwent dehydration melting and developed...rarely, garnet, which partly replace feldspar and cordierite. Mass balance calculations indicate an approximate...Terrane of the Namaqualand Metamorphic Complex in South Africa. The major thrust in the north marks the boundary...Proterozoic Namaqualand Metamorphic Complex, South Africa ŽFig. 1.. The petrography, prograde evolution...evolution and migmatisation of these rocks in south-central Namaqualand is described by Waters and Whales Ž1984 |  | | Journal (article/letter/editorial) | | temperatures in the Namaqua–Natal Metamorphic Province, South Africa Simon Schorn, Johann F.A. Diener, Dominik Sorger...temperatures in the Namaqua–Natal Metamorphic Province, South Africa, LITHOS (2020), https://doi.org/10.1016/ j.lithos...temperatures in the Namaqua–Natal Metamorphic Province, South Africa Simon Schorna,b, Johann F.A. Dienera, Dominik...Sciences, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa b Graz, Austria ro ...Sector of the Namaqua–Natal Metamorphic Province, South Africa, host partly retrogressed hercynite–quartz assemblages |  | Bailie, R., Armstrong, R., Reid, D. (2007) The Bushmanland Group supracrustal succession, Aggeneys, Bushmanland, South Africa: Provenance, age of deposition and metamorphism. South African Journal of Geology, 110 (1) 59-86 doi:10.2113/gssajg.110.1.59 | Journal (article/letter/editorial) | | supracrustal succession, Aggeneys, Bushmanland, South Africa: Provenance, age of deposition and metamorphism...Sciences, University of Cape Town, Private Bag, Rondebosch, 7700, South Africa Present address: Paleoproterozoic...O. Box 524, Auckland Park, Johannesburg, 2006. South Atrica e-mail: russellb®postgrad.uj.ac.za Richard...Sciences, University of Cape Town. Private Bag. Rondebosch, 7700, South Africa e-mail: dlr@geology.uct...uct.ac.z;i e 2007 March Geolt^cal Society of South Africa ABSTRACT The cenini] portion of the structurally |  | Clifford, Tom N., Stumpfl, Eugen F., Burger, Alwyn J., McCarthy, Terence S., Rex, David C. (1981) Mineral-chemical and isotopic studies of Namaqualand granulites, South Africa: A grenville analogue. Contributions to Mineralogy and Petrology, 77 (3) 225-250 doi:10.1007/bf00373538 | Journal (article/letter/editorial) | | Isotopic Studies of Namaqualand Granulites, South Africa: A Grenville Analogue Tom N. Clifford, 1 Eugen...University of the Witwatersrand, Johannesburg, South Africa 2 Montan-Universitgt, Leoben, Austria 3 National...Physical Research Laboratory, C.S.I.R., Pretoria, South Africa 4 Department of Earth Sciences, University of...Abstract. The northwestern part of South Africa and southern South-West Africa/Namibia is amongst the most...most extensive granulite terranes in Africa. This work reports the results of electron microprobe studies |  | Bailie, Russell, Abrahams, Gharlied, Bokana, Reddy, van Bever Donker, Jan, Frei, Dirk, le Roux, Petrus (2019) The geochemistry and geochronology of the upper granulite facies Kliprand dome: Comparison of the southern and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and clues to its evolution. Precambrian Research, 330. 58-100 doi:10.1016/j.precamres.2019.04.011 | Journal (article/letter/editorial) | | and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...and northern parts of the Bushmanland Domain of the Namaqua Metamorphic Province, southern Africa and...University of the Western Cape, Bellville, Western Cape, 7535, South Africa b Schlumberger Petroleum...Matieland, Western Cape, South Africa d Department of Geological Sciences, University of Cape Town, Rondebosch |  | Mouri, H., Andreoli, M. A. G., Kienast, J. R., Guiraud, M., De Waal, S. A. (2003) First occurrence of the rare ‘corundum + quartz’ assemblage in the high-grade zone from the Namaqualand Metamorphic Complex, South Africa: evidence for higher-P, T metamorphism?. Mineralogical Magazine, 67 (5) 1015-1021 doi:10.1180/0026461036750140 | Journal (article/letter/editorial) | | zone from the Namaqualand Metamorphic Complex, South Africa: evidence for higher-P, T metamorphism? { H...Pretoria, South Africa South African Nuclear Energy Corporation, P.O. Box 582, Pretoria 0001, South Africa...of the Namaqualand Metamorphic Complex (NMC) (South Africa). The magnetite-bearing rocks hosting the corundum-quartz...corundum, quartz, Namaqualand Metamorphic Complex, South Africa. Introduction THE coexistence of corundum and...of the Witwatersrand, P.O. Box 3, Wits 2050, South Africa # 2003 The Mineralogical Society 1998). However |  | | Journal (article/letter/editorial) | | Sciences, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa e-mail: simon.schorn@hotmail...Subprovince of the Namaqua–Natal Metamorphic Complex (South Africa) reveal a disparity of some 60–70 ◦ C in estimated...Namaqua–Natal Metamorphic Province (NNMP) in South Africa. The Namaqua Sector is a classic high-T –low-P...the west coast of Namibia to the south-eastern coast of South Africa and consists of the eastern Natal...E–W-trending isograds that delimit southern and northern amphibolite facies zones separated by a wide granulite |  | Diener, Johann F.A., White, Richard W., Link, Klemens, Dreyer, Tanya S., Moodley, Adam (2013) Clockwise, low- metamorphism of the Aus granulite terrain, southern Namibia, during the Mesoproterozoic Namaqua Orogeny. Precambrian Research, 224. 629-652 doi:10.1016/j.precamres.2012.11.009 | Journal (article/letter/editorial) | | Sciences, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa Earth System Science Research...Mesoproterozoic Namaqua Metamorphic Complex (NMC) of southern Africa. The terrain consists of pre- to syn-tectonic granitoid...Pseudosection modelling of garnet–sillimanite–cordierite–biotite aluminous metapelitic samples constrain...sillimanite by garnet–cordierite and subsequent partial replacement of garnet by cordierite at near-peak conditions...texturally distinct sillimanite partially replacing cordierite. U–Pb zircon dating of pre-, synand post-tectonic |  | | Journal (article/letter/editorial) | | of the Natal Metamorphic Province, Southeastern Africa P. Mendonidisl and G.H. Grantham2 Metallurgy Departmenf...Vanderbijlpark, South Africa, E-mail: peterOtritek.ac.za Council of Geoscience, P/Bag X112, Pretoria, South Africa...the mineral assemblage biotite + hypersthene + cordierite (with hercynite inclusions) + garnet + quartz...Munster Suite sills. The inclusions of hercynite in cordierite and the garnet + quartz symplectites after hypersthene...which these P. MENDONIDIS AND G.H. GRANTHAM 608 AFRICA $ i p; / ,CRATON t Sverdrupfjella t + + + |  | | Journal (article/letter/editorial) | | Mesoproterozoic continental back-arc in southern Africa Julia Bial a , Steffen H. Büttner b,∗ , Volker...Rhodes University, P.O. Box 94, Grahamstown 6140, South Africa a r t i c l e i n f o Article history: Received...(i) osumilite, replaced by alkali feldspar + cordierite + orthopyroxene + quartz ± plagioclase, (ii)...southwest of the study area and (iv) garnet + cordierite + quartz + sillimanite ± alkali feldspar ± plagioclase...northwestern South Africa and, under Phanerozoic cover, further to the KwaZulu Natal Province at the south-east |
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