 | | Journal (article/letter/editorial) | | THE MESOPROTEROZOIC AGGENEYS TERRANE, WESTERN NAMAQUA MOBILE BELT, SOUTH AFRICA W.P. COLLISTON Department...University of the Free State, Bloemfontein, South Africa e-mail: waynecolliston@ymail.com A.E. SCHOCH...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...ABSTRACT The stratigraphy of the Aggeneys Terrane is discussed, one of at least eleven tectono-stratigraphic |  | | Journal (article/letter/editorial) | | OF THE MESOPROTEROZOIC BUSHMANLAND ORE DISTRICT, SOUTH AFRICA—A DISCUSSION C. R. MCCLUNG,1,† J. GUTZMER...Auckland Park, Johannesburg, 2006, Republic of South Africa of Mineralogy, Technische Universität Bergakademie...contribution to the greater understanding of the Aggeneys-Gamsberg district and Bushmanland Group through the addition...sulfide deposits of the Aggeneys-Gamsberg district, must be younger than 1650 Ma, as previously concluded...direct conflict with the results of regional and local fieldbased investigations of the lithostratigraphy |  | | Journal (article/letter/editorial) | | OF THE MESOPROTEROZOIC BUSHMANLAND ORE DISTRICT, SOUTH AFRICA—A DISCUSSION C. R. MCCLUNG,1,† J. GUTZMER...Auckland Park, Johannesburg, 2006, Republic of South Africa of Mineralogy, Technische Universität Bergakademie...contribution to the greater understanding of the Aggeneys-Gamsberg district and Bushmanland Group through the addition...sulfide deposits of the Aggeneys-Gamsberg district, must be younger than 1650 Ma, as previously concluded...direct conflict with the results of regional and local fieldbased investigations of the lithostratigraphy |  | 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) | | Bushmanland Group supracrustal succession, Aggeneys, Bushmanland, South Africa: Provenance, age of deposition and...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 |  | | Journal (article/letter/editorial) | | Associates Pty Ltd, PO Box 740, North Adelaide, South Australia 5006, Australia A R T I C L E I N F O...deposits. In addition, the Menninnie PbZn deposit, South Australia, is not a BHT deposit since mineralization...(Broken Hill (Australia), Zinkgruvan, Menninnie Dam (South Australia; Beeson, 1990b), Balmat (New York), and...(Dammberget (Sweden), Boquira (Brazil), Aggeneys (South Africa), and Gamsberg). Although not being assigned...massive sulfides de posits in the Arunta Complex (Northern Territory, Australia) and the Georgetown Block |  | McClung, Craig R., Gutzmer, Jens, Beukes, Nicolas J., Mezger, Klaus, Strauss, Harald, Gertloff, Ellen (2007) Geochemistry of bedded barite of the Mesoproterozoic Aggeneys-Gamsberg Broken Hill-type district, South Africa. Mineralium Deposita, 42 (5) 537-549 doi:10.1007/s00126-007-0128-4 | Journal (article/letter/editorial) | | of the Mesoproterozoic Aggeneys-Gamsberg Broken Hill-type district, South Africa Craig R. McClung & Jens...AggeneysGamsberg Pb–Zn–Cu ± Ag–Ba district in the Northern Cape Province, South Africa. Barite samples were collected...collected and studied from four localities in the district. Although metamorphic water–rock interaction processes...Gamsberg deposit compared with the occurrences in the Aggeneys area, i.e. Swartberg-Tank Hill and Big Syncline...Bapoor nature of the sulfide mineralization of the Aggeneys deposits vs the Cu-poor, Ba-rich character of |  | | Journal (article/letter/editorial) | | Hill-type Gamsberg Zn–Pb deposit, Namaqua Province, South Africa Received: 24 January 2003 / Accepted: 29 September...the Gamsberg deposit in central Bushmanland, South Africa. Their shape, zonal features, and geochemistry...transition of siliciclastic-hosted pyrite–sphalerite– graphite mineralization to calc-silicate-hosted pyrrhotite–sphalerite...Stellenbosch, Private Bag X1, 7602 Matieland, South Africa E-mail: ar@sun.ac.za Tel.: +27-21-8083122 Fax:...are located in the central Namaqua Province of South Africa (Fig. 1). Three similar deposits are Fig. 1 |  | | 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) | | Fe-Pb-Zn-Cu sulphides and baryte at Aggeneys and Gamsberg, South Africa K. VON GEHLEN Institut fiir Geochemie...Company (Pty) Ltd., Private Bag XOl, Aggeneys, CP 8893, Rep. of South Africa AND A. ROZENDAAL O'okiep Copper...Ltd., PO Box 17, Nababeep, CP 8265, Rep. of South Africa ABSTRACT. Sulphur isotope ratios in sulphides...extreme for Precambrian sulphur. Black Mountain, Aggeneys,in the west gave an average for the sulphides...barytes of +20.6+4.3%0 (3 samples). Broken Hill, Aggeneys, in the centre gave an average for the sulphides |  | | Journal (article/letter/editorial) | | METAMORPHISM OF THE AGGENEYS TERRANE, NAMAQUA METAMORPHIC COMPLEX, SOUTH AFRICA J.F.A. DIENER Department...Sciences, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa. e-mail: johann.diener@uct...2014 June Geological Society of South Africa ABSTRACT The Aggeneys terrane is a central part of the...path. Whereas the absolute P-T conditions for the Aggeneys terrane are lower than that of the granulite terranes...similar P-T paths. However, peak metamorphism in the Aggeneys terrane is inferred to have occurred during the |  | | Journal (article/letter/editorial) | | Hill-type Gamsberg Zn-Pb deposit, Namaqua Province, South Africa M. Stalder Department of Geology, University...Stellenbosch, Private Bag X1, Matieland 7602, South Africa email: mstalder@freesurf.ch A. Rozendaal Department...7602, South Africa Corresponding author: ar@sun.ac.za © 2005 Geological Society of South Africa ABSTRACT...amphibolite-facies metamorphosed Bushmanland sequence of South Africa. In the Gamsberg Zn-Pb deposit, barite has been...concentrations of Ba within the wall rocks of the Aggeneys-Gamsberg deposits indicate that hydrothermal discharge |  | | Journal (article/letter/editorial) | | Swartberg Base Metal Deposit, Aggeneys-Gamsberg Ore District, South Africa Tarryn Kim Cawood†,* and Abraham...Private Bag X01, Matieland 7600, Republic of South Africa Abstract The polymetamorphosed Swartberg Cu-Pb-Zn-Ag...deposit in the Namaqua Metamorphic Province of South Africa is a major metal producer in the region, yet...mining town of Aggeneys, in the Bushmanland region of South Africa (Fig. 1). Despite the local importance...one of the primary base metal producers of the district and the site of active resource extension and |  | LINDEQUE, A., DE WIT, M. J., RYBERG, T., WEBER, M., CHEVALLIER, L. (2011) DEEP CRUSTAL PROFILE ACROSS THE SOUTHERN KAROO BASIN AND BEATTIE MAGNETIC ANOMALY, SOUTH AFRICA: AN INTEGRATED INTERPRETATION WITH TECTONIC IMPLICATIONS. South African Journal of Geology, 114 (3) 265-292 doi:10.2113/gssajg.114.3-4.265 | Journal (article/letter/editorial) | | SOUTHERN KAROO BASIN AND BEATTIE MAGNETIC ANOMALY, SOUTH AFRICA: AN INTEGRATED INTERPRETATION WITH TECTONIC... Am Alten Hafen 26, 27568 Bremerhaven, Germany Africa Earth Observatory Network and Faculty of Science...Elizabeth, South Africa Council for Geoscience, Western Cape, P.O. Box 572, 7535 Bellville, Cape Town, South...South Africa e-mail: ansalique@gmail.com M.J. DE WIT Africa Earth Observatory Network and Faculty of...Metropolitan University, 6031 Port Elizabeth, South Africa e-mail: maarten.dewit@nmmu.ac.za T. RYBERG |  | van der Westhuizen, Willem A., Strydom, Dawid, Schoch, Aylva E., Tordiffe, Eric A. W., Beukes, Gerhard J. (1986) Petrochemical evidence on the probable origin of ferriferous metasediments in western Bushmanland. Mineralium Deposita, 21 (2) 121-128 doi:10.1007/bf00204272 | Journal (article/letter/editorial) | | Orange Free State, Bloemfontein 9300, Republic of South A2?ica Abstract. The mineralized Proterozoic metasediments...and sillimanite, but less common occurrences of graphite, alunite, plumbojarosite, gahnite and dufrenite...extending as far north as the southern part of South-West Africa (Namibia). Various types of ferriferous rocks...z~ 29 ° 30" LEGEND Republic of South Africa HAIB SUBGROUP AGGENEYS SEQUENCE NAB SUBGROUP KHURISBERG...boundaries in western Bushmanland. The nearby mining district of central Bushmanland is depicted on the right |  | | Journal (article/letter/editorial) | | deposit in the NamaqualandMetamorphic Complex, South Africa H,c.nrwrcE. Fnr*rnror.,DnNNtsHorrnu,uN, RoN...Geological Sciences,University of Cape Town, Rondebosch7700, South Africa JoHN M. Moonn Department of Geology...Geology, Rhodes University, Grahamstovvn6140, South Africa AssrRAcr Micas with variable Ba content in...Hill deposit, Namaqualand Metamorphic Complex, South Africa. In those layers that contain neither potassium...bodies near Aggeneys and X-ray diffraction. The ion chromatography, analysis, in the northern CapeProvince |  | Reid, D. L., Welke, H. J., Smith, C. B., Moore, J. M. (1997) Lead isotope patterns in Proterozoic stratiform mineralization in the Bushmanland Group, Namaqua Province, South Africa. Economic Geology, 92 (2) 248-258 doi:10.2113/gsecongeo.92.2.248 | Journal (article/letter/editorial) | | the Bushmanland Grou , 206de 2•4 20 œ04P of South Africa has ave uniform Pb isoto e corn osition with...metamordeveloped withinthe Namaqua province of southern Africa phismhaveseverely modified theoriginalstratiform...Rhodes University, Grahams- formations, town, South Africa. nentsbut whichshowa generalupwardincreasein...ISOTOPE PATTERNS,BUSHMANLAND GROUP, S. AFRICA YOUNGER Cape To•n BELTS AND COVER SEQUENCES NAMAQUA... above,and diswhole-rock isochron ageof 1649q-95 Ma forthemetabasalticsolved in HC1andpurifiedbyelectrodeposition |  | | Journal (article/letter/editorial) | | the Gariep Belt and its basement, Namibia and South Africa H.E. Frimmel a,*, W. Frank b a Department of...Geological Sciences, University of Cape Town, Rondebosch 7700, South Africa b Institut für Geologie, Universität...Within the Pan-African Gariep Belt in southwestern Africa a para-autochthonous, predominantly sedimentary...basement cooled through ~300°C at 1006 Ma. Rifting between 781 and 741 Ma was followed by the formation of...cooled through 500°C sometime between 630 and 600 Ma. After inversion from extension to compression, some |  | | Journal (article/letter/editorial) | | of the Mesoproterozoic Bushmanland Ore District, South Africa D. H. CORNELL,1,† Å. PETTERSSON,1 MARTIN...Cu-Pb-Zn-Ag base metal deposits of the Bushmanland ore district have long been regarded as Paleoproterozoic s...deposits formed in a continental basin at about 1650 Ma and overlying the Achab Gneiss, an approximately...1650 Ma Koeris Formation. All the supracrustals were regarded as predating the 1200 to 1000 Ma Namaqua-Natal...Bushmanland ore district. The Bushmanland base metal deposits are not older than 1650 Ma, as entrenched |  | Deb, M., Thorpe, R.I., Cumming, G.L., Wagner, P.A. (1989) Age, source and stratigraphic implications of Pb isotope data for conformable, sediment-hosted, base metal deposits in the Proterozoic Aravalli-Delhi orogenic belt, northwestern India. Precambrian Research, 43 (1) 1-22 doi:10.1016/0301-9268(89)90002-8 | Journal (article/letter/editorial) | | model' are ~ 1800 Ma for the Rampura-Agucha, RajpuraDariba and Saladipura deposits, ~ 1700 Ma for the Zawar...Zawar deposits and ~ 1100 Ma for the Ambaji and Deri deposits. Mineralization in this orogenic belt thus...the area must be re-examined. Model ages of ~ 1100 Ma for the Ambaji-Deri deposits are the only evidence...Rajpura-Dariba deposits, as well as the Zawar district ore bodies collectively, are comparable in size...for comparable major deposits in Australia, South Africa and Canada. These conformable deposits are hosted |  | | Journal (article/letter/editorial) | | sulphur isotope study of the Broken Hill deposit, New South Wales, Australia P. G. Spry Department of Earth...high-grade ore from the Broken Hill deposit, New South Wales, Australia, have been determined and show...metamorphic events. Abstract. The Willyama Complex, New South Wales, Australia contains several hundred small...at about 1,800 Ma and underwent a granulite-grade metamorphic event at about 1,700 Ma (Shaw 1968; Laing...on altering the original values of 634S for the Aggeneys deposits where metamorphic conditions reached |  | | 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...1351–1299 Ma, followed by a more commonly seen younger stage of partial melting at ∼1200 Ma. The UHT peak...≥1300 Ma or, more likely, is an early stage of the widespread partial melting in the NMC at ∼1200 Ma. The...to ∼1200 Ma ages, two further age populations. The first of these, dated as 1090 ± 9–1071 ± 6 Ma, is associated |  | | Journal (article/letter/editorial) | | SEDIMENTS, GAMSBERG Zn–Pb DEPOSIT, NAMAQUA PROVINCE, SOUTH AFRICA MARCEL STALDER AND ABRAHAM ROZENDAAL§ Department...Stellenbosch, Private Bag X1, Matieland 7602, South Africa ABSTRACT Calderite-rich garnet and franklinite–jacobsite-rich...overlie the Proterozoic Gamsberg Zn–Pb deposit, South Africa. The minerals are restricted in occurrence to...manganese silicate rocks, Gamsberg deposit, South Africa. SOMMAIRE Nous documentons la présence de grenat...that occur in the central Namaqua Province of South Africa. In previous contributions, we described petrological |  | | 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;...pyroxene-phlogopite rocks from Namaqualand, South Africa. Chem. Geol., 85:77-100. A suite of cordierite-orthoamphibole...by weathering of mafic volcanic material and its local redeposition in an environment where relatively...Bushmanland Group at Gamsberg and Aggeneys have yielded a Nd isochron age of ~ 1650 Ma (Reid et al., 1987). Although |  | | Book | | Australia Jim Graham 4th 1991 Pretoria, South Africa Sybrand de Waal 3rd 1989 Montréal, Canada...USA Donald Hausen 1st 1981 Johannesburg, South Africa S.A. Hiemstra INTERNATIONAL COUNCIL FOR APPLIED...since the inaugural meeting in Johannesburg, South Africa in 1981 and this decenary event perhaps heralds..., 93–773 Lombard, A., 80–665 Lor, Y.A., 44–369 M Ma, Y.H., 96–795 MacDonald, M., 50–419 Macé, N., 84–699...Tassinari, MMML 9 3 Metallogeny of Culampajá Gold District, Argentina Avila, JC, and Lazarte, JE 4 Systematic |  | | Journal (article/letter/editorial) | | their positionsin the stratigraphic column of South Africa and to the ages of the geologic formations hosting...environments. The results of the analysis show that South Africa has an array of mineral wealth with many ch...old, stable crust that constitutes the core of South Africa. Anomalous conditions in the mantle beneath...wealth is due to the substantial ThE Republic of South Africa ranks as one of the most important mineral-producingcountries...estimated total productionof about $101,700 million. South Africa covers about 0.9 percent of the land surface |
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