 | | Journal (article/letter/editorial) | | with the Aggeneys Cu-Pb-Zn-Ag deposits, Namaqualand, South Africa P. G. Spry Department of Earth Sciences...with the Aggeneys base metal deposits, Namaqualand, South Africa. Zincian spinel in, sulphidebearing rocks...Aggeneys area and elsewhere in the Namaqualand Metamorphic Complex, Fe-rich spinels should not be discounted...O / Z n O + F e O + M g O ratio of gahnite in biotite-garnet-gahnite-quartz-feldspathic gneisses to indicate...metasediments of the Bushmanland Group, Namaqualand Metamorphic Complex, South Africa, and suggested that gahnite |  | | Journal (article/letter/editorial) | | Peraluminous metamorphic rocks from the Namaqualand Metamorphic Complex (South Africa)" Geochemical...2Department of Geology, University of Cape Town, 7700 Rondebosch (South Africa) (Received October 5, 1988; accepted... Peraluminous metamorphic rocks from the Namaqualand Metamorphic Complex (South Africa): Geochemical...221-240. Stratiform peraluminous rocks in western Namaqualand - mainly sillimanite rocks and sillimanite-corundumrocks...Introduction and geological setting Peraluminous metamorphic rocks have bulk compositions containing between |  | | Journal (article/letter/editorial) | | to W - M o mineralization in western Namaqualand, South Africa J.G. R a i t h Institut fiir Geowissenschaften...Spektakel Suite in the western Namaqualand Metamorphic Complex, South Africa. It intruded synkinematically...crystallization sequence (near-solidus crystallization of biotite prior to alkali feldspar) suggests that the CGG...q u a l a n d M e t a m o r p h i c Complex represents a complex Proterozoic high-grade terrain (supracrustal...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 deposits |  | 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) | | Isochron Ages of the Metamorphic Rocks in the Namaqualand Metamorphic Complex, South Africa M. Yuharal, T....out for metamorphic rocks in the Namaqualand Metamorphic Complex, South Africa. The metamorphic rocks give...the Rb-Sr mineral isochron ages (whole-rock - biotite - felsic fractions) of 844k 85 Ma and 811.6k6.6...fractions) and 1067k 158 Ma (whole-rock - hornblende - biotite rich fraction - felsic fractions) for the lower...850-780 Ma. The Sr and Nd isotopic compositions of metamorphic rocks are different between the lower and upper |  | | Journal (article/letter/editorial) | | 173â182 Did Bushmanland extensionally unroof Namaqualand? John F. Dewey a,b,c,d,â , Laurence Robb d,e...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...our understanding of metamorphic core complexes and the geology of Namaqualand. Abstract The Namaqua-Natal...and âwrapsâ the Archaean Kaapvaal Craton to the south and west. The Orogen includes the western ultra-hightemperature |  | | Journal (article/letter/editorial) | | SEDIMENTATION AND TERRANE AMALGAMATION IN SOUTHWESTERN AFRICA R. McG. MILLER Consulting Geologist, PO Box 11222...Society of South Africa ABSTRACT Mesoproterozoic crustal evolution of southwestern Africa involved a...a complex interplay over 600 million years of subduction, platemargin or intraplate sedimentation, volcanism...juxtaposed against low-grade terranes to the north and south during isostatic rebound on major, late-stage, dextral...forming their Umkondo Igneous Province. The Namaqualand sector of the Namaqua-Natal Mobile belt is divided |  | | Journal (article/letter/editorial) | | J. metamorphic Geol., 1998, 16, 281â305 Low-P/high-T metamorphism in the Okiep Copper District, western...western Namaqualand, South Africa J . G . R A I T H1 AN D S . L . HA R L E Y2 1 Institute of Geological...Okiep Copper District, part of the 1.2â1.0 Ga high-grade terrane in western Namaqualand, is composed...garnet+cordierite coexisting with sillimanite/biotite, or by biotite+sillimanite±garnet; a difference controlled...garnet+cordieritebearing assemblages were retrogressed to biotite+sillimanite+quartz (M2b) along discontinuous foliation |  | | Journal (article/letter/editorial) | | Department, University of Cape Town, Private Bag, Rondebosch 7700, South Africa Abstract Quartz-gahnite-sillimanite...Kraaifontein, 45 km south-west of Springbok in the Namaqualand Metamorphic Complex, South Africa. The assemblage...proximity to shear zones during an early Pan-African metamorphic event at 700 Ma. Zincian staurolite formed as...staurolite, gahnite, Kraaifontein, Namaqualand Metamorphic Complex. Introduction ZINC is known to show...assemblages at intermediate (lower amphibolite) metamorphic grades. In staurolite, Zn generally substitutes |  | | Journal (article/letter/editorial) | | emplacement and metamorphic ages of the Aggeneys Granite Suite, Bushmanland, South Africa Russell Bailie...Sciences, University of Cape Town, Private Bag, Rondebosch, 7700, South Africa Present address: Paleoproterozoic...Box 524, Auckland Park, Johannesburg, 2006, South Africa e-mail: russellb@postgrad.uj.ac.za Richard...Sciences, University of Cape Town, Private Bag, Rondebosch, 7700, South Africa e-mail: dlr@geology.uct...of South Africa ABSTRACT The central Bushmanland portion of the Namaqua Province of South Africa is |  | | Journal (article/letter/editorial) | | molybdenite from tungsten deposits in western Namaqualand, South Africa: implications for ore genesis and the...deposits in the Okiep copper district in western Namaqualand, South Africa. Apparently, stratabound mineralization...and a granite-related genetic model. Post-peak metamorphic deformation and metamorphism of W(Mo) ores is... the formation of W(Mo) deposits in western Namaqualand. Therefore, the eÂects of retrograde Namaquan...stratabound deposits, associated with regional metamorphic calc-silicate rocks, metabasites and tourmalinites |  | | Journal (article/letter/editorial) | | orthopyroxene-phlogopite rocks from Namaqualand, South Africa John M. Moore and David J. Waters* Department...Mineralogy and Geology, Universityof Cape Town, Rondebosch 7700 (South Africa) (Received February 10, 1989;.../orthopyroxene-phlogopite rocks from Namaqualand, South Africa. Chem. Geol., 85:77-100. A suite of c...granulite-facies region of the western Namaqualand Metamorphic Complex. The gneisses are directly associated...rocks have been widely studied in a number of metamorphic terranes, commonly of Proterozoic age. They occur |  | | Journal (article/letter/editorial) | | AGGENEYS TERRANE, WESTERN NAMAQUA MOBILE BELT, SOUTH AFRICA W.P. COLLISTON Department of Geology, University...University of the Free State, Bloemfontein, South Africa e-mail: waynecolliston@ymail.com A.E. SCHOCH Department...University of the Free State, Bloemfontein, South Africa e-mail: aesc@iafrica.com H.E. PRAEKELT Department...Bloemfontein, South Africa e-mail: praekelthe@ufs.ac.za © 2012 December Geological Society of South Africa ABSTRACT...different east-west trending strain domains: a northern zone of lower strain (zone I) with nearly uninterrupted |  | | Journal (article/letter/editorial) | | contamination and desulfidation Koperberg Suite, Namaqualand, South Africa of the cupriferous R. H. BOER,â F. M...University of the Witwatersrand, WITS 2050, South Africa âDepartment of Geology, University of the Witwatersrand...Witwatersrand, Private Bag 3, WITS 2050, South Africa (Received January 14, 1993; accepted in revised...facies terrane in the northwestern Cape Province of South Africa. Rock types include pyroxenite, norite...that places new constraints on the magmatic and metamorphic evolution of the Koperberg Suite and associated |  | | Journal (article/letter/editorial) | | Article Polyphase Deformation of the High-Grade Metamorphic Rocks along the Neusspruit Shear Zone in the...the Eastern Margin of the Namaqua Metamorphic Province, South Africa Cyrille Stephane Tsakou Sonwa * ...University of the Western Cape, Private Bag X17, Bellville, Cape Town 7535, South Africa; jvanbeverdonker@uwc... R. Polyphase Deformation of the High-Grade Metamorphic Rocks along the Neusspruit Shear Zone in the...the Eastern Margin of the Namaqua Metamorphic Province, South Africa. Minerals 2021, 11, 759. https://doi |  | | Journal (article/letter/editorial) | | 1934-1954 Tungsten Deposits in theWolframSchist,Namaqualand, SouthAfrica: Strata-Bound VersusGranite-Related...WOawas produced, occur in theOkiepcopper district, South Africa, whichispartofa high-temperature, low-pressure...byMsupperamphibolite-lower granulite facies assemblages (biotite-sillimanite + garnet, _+cordieritc plusquartz,...granites andthe W-Mo deposits are deformed, metamorphic ore textures (e.g.,garnet coronas around oreminerals)...isabsent, suggest thatthesecond Malate-Kibaran metamorphic overprint postdated mineralization. Oxygen isotope |  | | Journal (article/letter/editorial) | | of the westernNamaqualandmetamorphiccomplex' South Africa JonN M. Moonn, Dlvro J. Wlrnns* Department of...and Geology, University of Cape Town, Private Bag, Rondebosch7700, South Africa L. NrvnN Mlnclnnr Department...Chemistry, University of Cape Town, Private Bag, Rondebosch7700, South Africa Ansrnlcr A new borosilicate...facies of the Namaqualand metamorphic complex at Bok se Puts, Namaqualand, South Africa. The mineral occurs...Radioactive Waste Disposal Facility, Namaqualand District, South Africa, in 1986, rock samplescontaining |  | Mouri, H., Andreoli, M. A. G., Kienast, J. R., Guiraud, M., De Waal, S. A. (2003) First occurrence of the rare âcorundum + quartzâ 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) | | the high-grade zone from the Namaqualand Metamorphic Complex, South Africa: evidence for higher-P, T metamorphism...Pretoria, South Africa South African Nuclear Energy Corporation, P.O. Box 582, Pretoria 0001, South Africa...high-grade metamorphic zone in the core of the Namaqualand Metamorphic Complex (NMC) (South Africa). The magnetite-bearing...anorthosite within quartzfeldspar ? sillimanite ? biotite ? spinel supracrustal rocks extensively intruded...EY WORDS : corundum, quartz, Namaqualand Metamorphic Complex, South Africa. Introduction THE coexistence |  | | Journal (article/letter/editorial) | | PRECAMBRIAN NAMAQUA MOBILE BELT IN EASTERN NAMAQUALAND, SOUTH AFRICA B.J.V. BOTHA and N.J. GROBLER Department...University of the Orange Free State, Bloemfontein (South Africa) (Received November 17, 1978; revision accepted...Precambrian Namaqua Mobile Belt in Eastern Namaqualand, South Africa. Precambrian Res., 10: 21--41. The middle...Matsap/Kheis/Namaqua sequences in the Northern Cape Province of South Africa were deposited in an intracratonic...high-grade metamorphism. Sedimentary, structural and metamorphic features indicate that there was no separation |  | | Journal (article/letter/editorial) | | J . metamorphic Geol. 1988, 6 , 387-404 Partial melting and the formation of granulite facies assemblages...assemblages in Namaqualand, South Africa D.J. WATERS, Department of Geology, University of Cape Town, Rondebosch...Rondebosch, 7700 South Africa Abstract. Dehydration-melting reactions, in which water from a hydrous phase...mass balance of dehydration melting in typical biotite gneiss and metapelite shows that the proportion...Granulite facies metapelite, biotite gneiss and metabasic gneiss in Namaqualand contain coarse-grained, discordant |  | | Journal (article/letter/editorial) | | OF THE AGGENEYS TERRANE, NAMAQUA METAMORPHIC COMPLEX, SOUTH AFRICA J.F.A. DIENER Department of Geological...Sciences, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa. e-mail: johann.diener@uct...diener@uct.ac.za © 2014 June Geological Society of South Africa ABSTRACT The Aggeneys terrane is a central...central part of the western Namaqua Metamorphic Complex (NMC) that is most renowned for hosting world-class...The Mesoproterozoic Namaqua Metamorphic Complex (NMC) of southern Africa borders the southern and western |  | | Journal (article/letter/editorial) | | transition in metapelites from southern Namaqualand, S. Africa D.J. Waters 1 * and C.J. Whales 2 Dept...Dept. of Geology, University of Cape Town, Rondebosch, South Africa Abstract. In a prograde amphibolite-granulite...amphibolite-granulite transition zone in the Namaqualand Metamorphic Complex, metapelites show an interbanding of...of the amphibolite facies association biotite + sillimanite+ quartz with the granulite facies association...and have more Fe-rich bulk compositions than the biotite-sillimanite schists. The contrasting asemblages |  | 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) | | Mineral-Chemical and Isotopic Studies of Namaqualand Granulites, South Africa: A Grenville Analogue Tom N. Clifford...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 |  | | Journal (article/letter/editorial) | | O U T H AFRICA G.A.D. ZELT* University of Natal, Pietermaritzburg, 3200, Natal (South Africa) (Received...Granulite-facies metamorphism in Namaqualand, South Africa. Precambrian Res., 13: Namaqualand is the site of an extensive...t h e n o r t h w e s t e r n p a r t o f t h e Cape Province, R e p u b l i c o f S o u t h A f r i...r o m investigations in t h e N a b a b e e p District, B e n e d i c t et al. ( 1 9 6 4 ) d e f i n...m a t i o n a l episodes o c c u r r e d in Namaqualand prior to the deposition of late-Precambrian sedimentary |  | | Report (chapter) | | March 16, 2015 Metamorphic evidence for the heating and cooling path of Namaqualand granulites D. J...surrounding the Archaean Kaapvaal craton in southern Africa. It contains a wide and well-exposed zone of low-pressure...earlier paper (Waters 1986a) which described the metamorphic zonation in part of the province, and discussed...neighbouring areas, shows a relatively simple metamorphic zonation of amphibolite to granulite facies,... with little evidence for more than one metamorphic event (Waters 1986a). Timing of deformation and |  | Grew, E. S., Rao, A. T., Raju, K. K. V. S., Hejny, C., Moore, J. M., Waters, D. J., Yates, M. G., Shearer, C. K. (2003) Prismatine and ferrohögbomite-2N2S in granulite-facies Fe-oxide lenses in the Eastern Ghats Belt at Venugopalapuram, Vizianagaram district, Andhra Pradesh, India: do such lenses have a tourmaline-enriched lateritic precursor?. Mineralogical Magazine, 67 (5) 1081-1098 doi:10.1180/0026461036750144 | Journal (article/letter/editorial) | | Eastern Ghats Belt at Venugopalapuram, Vizianagaram district, Andhra Pradesh, India: do such lenses have a...Rhodes University, P O Box 94, Grahamstown, 6140 South Africa Department of Earth Sciences, Oxford University... India. Hemo-ilmenite, sapphirine, magnetite, biotite and sillimanite are subordinate. Lithium, Be and...another of these localities, Bok se Puts, Namaqualand, South Africa, are consistent with this scenario. Under...ferrohoÌgbomite, Eastern Ghats Belt, India, Namaqualand, South Africa. Introduction ELEVATED concentrations |
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