 | | Journal (article/letter/editorial) | | (Late Triassic – Early Jurassic), Karoo Supergroup, South Africa’ (South African Journal of Geology, 107...and B.S. Rubidge © 2005 Geological Society of South Africa The discussion by Turner and Thomson raises...hypothetical plume model for the development of the main Karoo Basin during the Triassic to Early Jurassic (Turner...of the Karoo Basin, and highlighted the lack of reliable radiometric dates for the “upper Karoo”, as well...knowledge and understanding of this part of the Karoo Basin fill. One of Turner and Thomson’s major concerns |  | | Journal (article/letter/editorial) | | Geological Sciences, University of Cape Town, Rondebosch, South Africa With 8 Figures Received August 16...Summary In the West Rand Group of the 3.07-2.71 Ga old Witwatersrand Supergroup, South Africa, a series of...not by some external source. Zusammenfassung Die West Rand Group innerhalb der 3.07-2.71 Milliarden Jahre...sulphur fugacity. In iron-formation horizons of the West Rand Group (Eriksson et al., 1981; Tankard et al...mineral chemical data on some iron-formation of the West Rand Group, and to discuss the geological implications |  | | Book (edition) | | UES COVER: TAPESTRIES. DEPICTING DIAMOND IRON, URANIUM, COAL AND GOLD, DESIGNED AND MADE BY JO AND ERNEST...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...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic |  | Rantzsch, Ulrike, Gauert, Christoph D. K., Van der Westhuizen, Willem A., Duhamel, Isabelle, Cuney, Michel, Beukes, Gerhard J. (2011) Mineral chemical study of U-bearing minerals from the Dominion Reefs, South Africa. Mineralium Deposita, 46 (2) 187-196 doi:10.1007/s00126-010-0317-4 | Journal (article/letter/editorial) | | U-bearing minerals from the Dominion Reefs, South Africa Ulrike Rantzsch & Christoph D. K. Gauert & Willem...from Uranium One Africa’s Rietkuil and Dominion exploration areas near Klerksdorp, South Africa, were...evidenced by crystal shape and texture. Most of the uranium mineralisation is represented by detrital uraninite...P.O. Box 339, Bloemfontein 9300, Republic of South Africa e-mail: GauertCDK@ufs.ac.za U. Rantzsch Institut...palaeo-placer . Dominion Group . Detrital uraninites . South Africa Introduction The Dominion Group U–(Au) deposits |  | | Journal (article/letter/editorial) | | OF THE MESOARCHEAN WITWATERSRAND SUPERGROUP, SOUTH AFRICA B.M. GUY AND N.J. BEUKES Paleoproterozoic Mineralization...University of Johannesburg, Auckland Park, 2006, South Africa e-mail: bradguy5@gmail.com; nbeukes@uj.ac.za...University of Johannesburg, Auckland Park, 2006, South Africa Department of Mineralogy, Technische Universitat...tu-freiberg.de © 2010 June Geological Society of South Africa ABSTRACT A petrographic and mineral chemical...associated iron sulfides. This study finds that local depositional and tectonic settings are instrumental |  | | Journal (article/letter/editorial) | | fresh drill core from the Kaapvaal Craton in South Africa and from the Pilbara Craton in Australia vary...Chemical Geology 218 (2005) 135–169 ered in South Africa and Australia. They are 3.25 to 2.20 Ga in age...and exposed on the Kaapvaal Craton of southern Africa (Fig. 1) and on the Pilbara Craton in the Pilbara–Hamersley...metamorphism, generally less than greenschist facies. South African samples are from the ~ 3.3 Ga Fig Tree Group...Group of the Swaziland Supergroup, the ~ 3.0 Ga West Rand Group of the Witwatersrand Supergroup, the |  | | Journal (article/letter/editorial) | | the Makoppa Dome, northwest Limpopo Province, South Africa C.R. Anhaeusser Economic Geology Research Institute...Private Bag 3, P.O. WITS 2050, Johannesburg, South Africa e-mail: anhaeusserc@geosciences.wits.ac.za ...Private Bag 3, P.O. WITS 2050, Johannesburg, South Africa Present address: Department of Earth Sciences...mpoujol@esd.mun.ca © 2004 Geological Society of South Africa ABSTRACT The Makoppa Dome, located in the far...Archaean granite-greenstone terranes in southern Africa. For this reason it has received very little attention |  | | Journal (article/letter/editorial) | | Concentration of Gold in the Early Precambrian of Southern-Africa R. P. VILJO~N*, R. SAAGER** and M. J. VILJOEN*...Geology, University of Witwatersrand, Johannesburg, South Afrika ** Vancouver, Canada The important gold...gold deposits of the early Precambrian of Southern Africa are confined to two main geologic environments...Introduction a striking and unique pattern Southern Africa is one of the largest gold provinces known on earth...of the granite-greenstone material. In Southern Africa these younger metamorphic mobile belts surround |  | | Report (issue) | | IAEA-TECDOC-427 URANIUM DEPOSITS IN PROTEROZOIC QUARTZ-PEBBLE CONGLOMERATES REPORT OF THE WORKING GROUP...GROUP ON URANIUM GEOLOGY ORGANIZED BY THE INTERNATIONAL ATOMIC ENERGY AGENCY A TECHNICAL DOCUMENT ISSUED...INTERNATIONAL ATOMIC ENERGY AGENCY, VIENNA, 1987 URANIUM DEPOSITS IN PROTEROZOIC QUARTZ-PEBBLE CONGLOMERATES...activity in exploration and research regarding uranium deposits which ended in the early 1980's added...significantly to our knowledge of uranium geology and the nature of uranium deposits. Much of the information |  | | Report (chapter) | | 2015 Development of the Witwatersrand Basin, South Africa M I K E R C O W A R D 1, R I C H A R D M. S...developed on already consolidated continental crust south of the Limpopo plate margin. It is a flexural basin...be mapped and dated, relative to sediments of Central Rand age. The basin subsequently underwent extension...mountain belts. The Witwatersrand basin in South Africa (Figs 1 & 2) is important in the study of Early... occurring as sediment-hosted gold within the Central Rand Group of the Witwatersrand Supergroup (see |  | | Journal (article/letter/editorial) | | Empire Street, WITS 2050, Gauteng, Johannesburg, South Africa a r t i c l e i n f o Article history: Received... a b s t r a c t The Witwatersrand Basin in South Africa has been the focus of gold exploitation for...(Welkom), Klerksdorp, West Wits Line, West Rand, Central Rand, East Rand and South Rand goldfields are summarised.... . . . . . . . . . . . . . . . . . . . . 3.2. South Rand goldfield . . . . . . . . . . . . . . . . .... . . . . . . . . . . . . . . . . . . . . 3.3. Central Rand goldfield . . . . . . . . . . . . . . . . |  | | Journal (article/letter/editorial) | | Geological Sciences, University of Cape Town, Rondebosch 7700, South Africa e-mail: David.R.Bell@asu.edu ...University of Cape Town, Rondebosch 7700, South Africa Email: © 2004 Geological Society of South Africa ABSTRACT...subcontinental lithospheric mantle of southern Africa, and may be used to probe its compositional structure...garnet megacrysts from 61 kimberlites in southern Africa define four broad arrays on the basis of Cr2O3...continuing into the Proterozoic Namaqua Province to the west. In contrast, all suites examined from the Zimbabwe |  | | Report (issue) | | Distribution of Uranium Deposits (UDEPO) IAEA-TECDOC-1843 World Distribution of Uranium Deposits (UDEPO)...978–92–0–101518–1 ISSN 1011–4289 @ WORLD DISTRIBUTION OF URANIUM DEPOSITS (UDEPO) The following States are Members...BURKINA FASO BURUNDI CAMBODIA CAMEROON CANADA CENTRAL AFRICAN REPUBLIC CHAD CHILE CHINA COLOMBIA CONGO...SEYCHELLES SIERRA LEONE SINGAPORE SLOVAKIA SLOVENIA SOUTH AFRICA SPAIN SRI LANKA SUDAN SWAZILAND SWEDEN SWITZERLAND...world’’. IAEA-TECDOC-1843 WORLD DISTRIBUTION OF URANIUM DEPOSITS (UDEPO) 2016 EDITION INTERNATIONAL ATOMIC |  | Large, R. R., Meffre, S., Burnett, R., Guy, B., Bull, S., Gilbert, S., Goemann, K., Danyushevsky, L. (2013) Evidence for an Intrabasinal Source and Multiple Concentration Processes in the Formation of the Carbon Leader Reef, Witwatersrand Supergroup, South Africa. Economic Geology, 108 (6) 1215-1241 doi:10.2113/econgeo.108.6.1215 | Journal (article/letter/editorial) | | Carbon Leader Reef, Witwatersrand Supergroup, South Africa* Ross R. Large,1,† Sebastien Meffre,1 Rob Burnett...Department 4 Central Ashanti, Geoscience Technical Office, Johannesburg, South Africa of Geology, University...University of Johannesburg, Auckland Park, 2006, South Africa Science laboratory, University of Tasmania...pyrite and gold was intrabasinal, derived from the West Rand Group or equivalent shales stratigraphically...diagenetic pyrites reported from sedimentary rocks in the West Rand Group. Detrital porous and sooty pyrites contain |  | | Journal (article/letter/editorial) | | Ga ago; rocks of the West Rand Group, <2970–2914 Ma ago; and rocks of the Central Rand, <2894–2780 Ma...gneisses (“gray gneisses”) detected, though in local sectors, virtually in all continents and ancient...(1) Gold ore fields: (I) Central Rand, (II) East Rand, (III) Evander, (IV) West Rand, (V) Carletonville...(VII) Welkom. (1−12) Major reefs developed in the western fields: (1) Ventersdorp Contact, (2) Kloof, (3)...(3) Libanon, (4) Carbon Leader, (5) Black, (6) West Ventersdorp Contact, (7) Vaal, (8) Eldorado, (9) Andenk |  | | Report (issue) | | IAEA TECDOC SERIES Geological Classification of Uranium Deposits and Description of Selected Examples ...IAEA-TECDOC-1842 Geological Classification of Uranium Deposits and Description of Selected Examples ...ISSN 1011–4289 @ GEOLOGICAL CLASSIFICATION OF URANIUM DEPOSITS AND DESCRIPTION OF SELECTED EXAMPLES ...BURKINA FASO BURUNDI CAMBODIA CAMEROON CANADA CENTRAL AFRICAN REPUBLIC CHAD CHILE CHINA COLOMBIA CONGO...SEYCHELLES SIERRA LEONE SINGAPORE SLOVAKIA SLOVENIA SOUTH AFRICA SPAIN SRI LANKA SUDAN SWAZILAND SWEDEN SWITZERLAND |  | | Report (issue) | | IAEA-TECDOC-1629 World Distribution of Uranium Deposits (UDEPO) with Uranium Deposit Classification 2009 Edition... IAEA-TECDOC-1629 World Distribution of Uranium Deposits (UDEPO) with Uranium Deposit Classification 2009 Edition...Austria WORLD DISTRIBUTION OF URANIUM DEPOSITS (UDEPO) WITH URANIUM DEPOSIT CLASSIFICATION IAEA, VIENNA...Having comprehensive information on the worldwide uranium deposits is crucial for implementation of significant...published numerous reports on different types of uranium deposits, their geological characteristics and |  | | Journal (article/letter/editorial) | | 1University of the Witwatersrand, Johannesburg, South Africa 2 CREGU, Vandoeuvre-L~s-Nancy, France With 9...deposited between 3074Ma and 2714Ma in the south-central portion of the Kaapvaal Craton. The depositional...Ventersdorp Contact Reef and authigenic futile from the West Rand Group yield ages of ca 2500 Ma and 2578 Ma...sulphide phases (Fe, Cu and As) suggesting that gold, uranium and other metals were, therefore, transported in...development of a major thermal anomaly over much of the central Kaapvaal Craton and this coincides with the peak |  | | Book | | , Broder J. Merkel Andrea Hasche- Berger Uranium in the Environment Mining Impact and Consequences... Broder J. Merkel Andrea Hasche-Berger (Editors) Uranium in the Environment Mining Impact and Consequences...................... XIII Long-term Aspects of Uranium Mining Remediation Hartn1ut Biele, Stephanie Hu1·st...Diagenetic Processes on the Geochemical Stability of Uranium Mill Tailings Greg Sinclair, Graham Taylor, Paul........................... 27 Long tem1 fate of uranium tailings in mountain areas Broder J. Merkel .. |  | | Book | | Archaean Geology of the Kaapvaal Craton, Southern Africa Regional Geology Reviews Series editors Roland... Nelson Mandela University, Port Elizabeth, South Africa François M. Roure, Rueil-Malmaison, France ...Archaean Geology of the Kaapvaal Craton, Southern Africa 123 Editors Alfred Kröner Institut für Geowissenschaften...Geology University of Johannesburg Auckland Park, South Africa ISSN 2364-6438 ISSN 2364-6446 (electronic)...continued interest. The Kaapvaal Craton of Southern Africa is featuring prominently in early Earth studies |  | | Book | | Germany Maarten J. de Wit, Port Elizabeth, South Africa François M. Roure, Rueil-Malmaison, France ...(Gariep Belt) cropping out in the western borders of Namibia and South Africa. They were split up in the Mesozoic...Mesozoic during the south Atlantic Ocean opening”. Photo by Mathias Hueck Printed on acid-free paper This...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 |  | | Report (issue) | | N A L P A P E R I I 6 I - A - BB GENESIS OF URANIUM- AND GOLD-BEARING PRECAMBRIAN QUARTZ-PEBBLE CONGLOMERATES... Polished specimens of quartz-pebble conglomerate uranium ore. Both actual size. A2 A. AB Reef, Denison...courtesy of D. K. Hallbauer, Chamber of Mines of South Africa ; radioluxograph by David M. Watson, Geological...Atomic Energy: v. 3, p. 550-553. Genesis of Uranium- and Gold-Bearing Precambrian Quartz-Pebble Conglomerates...Armstrong. History: A. Investigation of Witwatersrand uranium-bearing quartz-pebble conglomerates in 1944-45 |  | | Book | | t a t e d Bibliographies of Mineral Deposits in Africa, Asia (exclusive of t h e U S S R ) a n d Australasia...CANADA Pergamon of Canada Ltd., 207 Queen's Quay West, Toronto 1, Canada AUSTRALIA Pergamon Press (Aust...Kronberg-Taunus Pferelstrasse 1, Frankfurt-am-Main, West Germany Copyright © 1976 John Drew Ridge All Rights...him. I have tried to include all ore districts in Africa, Asia (exclusive of the U.S.S.R.)> and Australasia...incluir todos los distritos mineros conocido en Africa, Asia (con exclusion de la Union Soviética), y |  | | Book | | Terms of Metal World Production of Platinum and Uranium Oxide 545 International Professional Services...slowed even in those with the strongest economies. Western world economic growth, which boomed up to 4.8%...hit in the past year were gold, silver, tin and uranium. Recession has been felt most cruelly where stocks... Gold's price fell to levels at which half the South African gold mines, probably half those in Australia...have been widespread, especially in the highcost South African mines. Some say a structural change is taking |  | | Report (issue) | | some ore deposits, such as manganese, molybdenum, uranium, and vanadium. The atmospheric concentrations of...linked to atmosphere-hydrosphere compositions were uranium paleoplacers and banded iron formations. Later...has expanded the list to include other types of uranium deposits, sedimentary manganese deposits, laterites...third section of the volume, which focuses on uranium deposits and their relation to atmospheric evolution...Witwatersrand Supergroup in South Africa that contains Earth’s largest gold-uranium deposits. These deposits |
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