 | | Journal (article/letter/editorial) | | FluoriteDeposits in theDolomiteSeriesof the Marico District, Transvaal,SouthAfrica J. E. J. M^RTI•I Abstract...Precambrian Dolomite Series is mineralized with fluorite and minor lead-zinc. The depositsshowsimilaritiesto...horizonsand paleokarst. On a larger scalethe fluorite district is localizedon a paleorelief which acted as...Economically the fluorite district appearsto be oneof the largestin the world. Introduction T•. fluorite area of...of the Marico District is situated about 20 km south of Zeerust. Fluorite has been the upper dolomiteand |  | | Journal (article/letter/editorial) | | Pretoria 0001, Republicof SouthAfrica Abstract Fluorite-hematitemineralizationon the farms Kromdraai and...secondary impregnation and selective replacement of FLUORITE-HEMATITE mineralization occurs asso- the more...3H20 = Fe203 + 6HF, the released fluorine mekm north-northeast of Pretoria on the farms Kromtasomati...lithologicalsequence rock suite which also contains discreet fluorite and in detail. He found that the hematite invariably...depositin southern sive fluorite ore in the vicinity of the "Big North" Africa. He related the pyroclastic |  | Basson, I.J., McCall, M.-J., Andrew, J., Daweti, E. (2018) Structural controls on mineralisation at the Namib Lead and Zinc Mine, Damara Belt, Namibia. Ore Geology Reviews, 95. 931-944 doi:10.1016/j.oregeorev.2018.03.028 | Journal (article/letter/editorial) | | House, 20 Gardner Williams Ave, Somerset West, South Africa b North River Resources, 84 Dr Frans Indongo...University, Private Bag X1, Matieland, 7602, South Africa Abstract The Namib Lead and Zinc (Pb-Zn) Mine...Swakopmund in the Rössing Mountains Area, Swakopmund District, Erongo Region (Figure 1). The deposit was discovered...contact with the Arandis Formation, immediately south of the Omaruru Lineament. The host marble shows...exploited, (South, Junction and North), with the bulk of historic production coming from the South and Junction |  | | Journal (article/letter/editorial) | | University of the Witwatersrand, Johannesburg, 2050, South Africa Current address: Department of Geology, Rand...Box 524, Auckland Park, Johannesburg, 2006, South Africa e-mail: glgy13@na.rau.ac.za L.J. Robb EGRI-HAL...2050, South Africa e-mail: robblj@geosciences.wits.ac.za © 2004 Geological Society of South Africa ABSTRACT...tourmaline – sulphide association, (2) a molybdenite – fluorite – REE – sulphide association, (3) a sulphide –...association and (4) a late-stage oxidized hematite – fluorite – pitchblende association superimposed on the |  | | Book | | Namibia rank amongst the top five mining countries in Africa. both in terms of production and reserves. In this...century when the Gennan Colonial Office in South West Africa appointed Government Geologists to carry out...wait until 1926, when the Geological Survey of South Africa opened a branch office under the direction of...magnetite quartzites and sedex lead-zinc deposits of South Africa (Rozendaal, 1978; 1986; Ryan et al., I986) where...molybdenumdeposits occur in YioolsdrifSuite rocks south of the Orange River. The Orange River Group and |  | | 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...great diversity and magnitude of South African mineral deposits and local mining operations, the Economic...Chamber of Mines of South Africa with Mr G. H. Grange as co-ordinator, and the South, African mining industry; |  | | Journal (article/letter/editorial) | | worldwide exploration and particularly in southern Africa. Namibia constitutes a uraniferous province with...University of the Witwatersrand, Johannesburg, South Africa *Corresponding author, email Judith.kinnaird@wits...polydeformed and polymetamorphic orogenic belt with a north–south trending coastal belt and an intracontinental...Orogen which is bounded to the north by the Omaruru Lineament and to the south by the Okahandja Lineament...apparent metamorphic grade increase from east to west where granulite facies has been attained near the |  | | Journal (volume) | | NUMBER 3 OFFICIAL ORGAN OF THE FEDERATION OF SOUTH AFRICA GEM AND MINERALOGICAL SOCIETIES VARDLEV'SGEM...Ring or A6S Lap Unit inverted to cxposo gato The South African lapidary Magazine 65 S.A LAPIDARY MAGAZINE...TY□ SKRIF P.O. BOX 31701 BRMMFONTEIN 2017 SOUTH AFRICA Honorary Editor: R.S. Aytoun Hon. Assistant...95 J. Hepker. Published by the Federation of South African Gem and M(neralogical Societies. Sub!11iss_ion...preferably be no smaller than postcard size. 66 The South African lapidary Magazine WE WISH OUR ADVERTISERS |  | | Book | | fruition and where they develop depends on a host of local factors, but the broad environmental controls in...and possibly enrage some of those with first-hand local knowledge. To such people I can only offer an advance...their willingness to share freely of their time and local expertise with an itinerant academic. Without their.................. . 83 The Fresnillo Ag-Pb-Zn District, Zacatecas, Mexico .............................Massive Sulfide Deposits of the BathurstNewcastle District, New Brunswick, Canada Discussion of Tectonic |  | | Report (chapter) | | equate with any other glaciation worldwide. In North Africa proven petroleum systems within Neoproterozoic...Most of the Palaeozoic-sourced hydrocarbons in North Africa are owing to the presence of Lower Silurian...from the formerly glaciated region of northern Africa. In the Palaeozoic post-glacial time interval,...Petroleum Systems: The Emerging Potential in North Africa. Geological Society, London, Special Publications...assignments as well as the possibility of different, local not global glaciations during the ‘Sturtian’. The |  | | Journal (issue) | | NUMBER 1 OFFICIAL ORGAN OF THE FEDERATION OF SOUTH AFRICAGEMAND MINERALOGICALSOCIETIES VARDLEV'SGEM...Ring of R6S t_ap Unit 1nvar1cdto expose gato The South African Lapidary Magazine S.A S.A LAPIDA·RY LAPIDERE...31701 BRAAMFONTEIN 1 MAGAZINE TYDSKRIF 2017 SOUTH AFRICA Honorary Editor: J. BRASG Hon. Assistant Editor..._Diego. See Page 6. Published by the Federation of South African Gem and Mineralogical Societies. Submission...preferably be no smaller than postcard size. The South African LapidanJ Magazine 2 Published four times |  | | Book (edition) | | Metallurgy, Glasgow Technical College and VicePresident, West of Scotland Iron and Steel Institute. With 25 ;...COLONY THE SOUTH AFRICAN SCIENCE SERIES. EDMONDS' for (H.) ELEMENTARY BOTANY, South Africa. revised...PLANTS AND THEIR WAYS IN SOUTH AFRICA. By BERTHA STONEMAN, Huguenot ton, South Africa. grams, and Map. With...College, Welling- Illustrations, 3s. Dia- 6d. SOUTH AFRICAN FLOWERING PLANTS : for the use of Beginners... to further the study of Natural Science in South Africa. During the five years which have passed since |  | | 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 |  | | Book | | appeared in English (Salop 1977 a). The Precambrian of Africa is discussed in detail in a separate book that...Some aspects of the Precambrian of Australia and South America are examined in papers that are in preparation...References . . 410 Subject Index 435 Index of Local Stratigraphic Units and of Some Intrusive Formation...older gneisses of the Limpopo belt in Southern Africa by Rb-Sr analysis can be given as an example. At...by Kay in his well-known work on geosynclines in North America 10 General Problems in Division of the |  | | Book (volume) | | England: at the University Press New York, 35 West IgIo 32nd Street GENERAL Copyright, in the...utCanada: , ALFRED PETER HitiiEr, M.D., M.P. Author of South African Studies; The Commonweal; &c. Served in Kafnr...with Dr L. S. Jameson in medical practice in South Africa till 1896. Member of Reform Committee, Johannesburg...DE Pvt. Assistant, Victoria and Albert Museum, South Kensington. Author of HispanoMoresque Ware of the...Ceramics: Assistant, Victoria and Albert Museum, South Kensington. CHARLES FRANCIS ATKINSON. Formerly |  | | Book (volume) | | Papers and Discussions Volume I , I JOHANNESBURG SOUTH AFRICAN INSTITUTE OF MINING AND METALLURGY 1961... 01", ~TALLUf>iYY. © Copyright 1961 by The South African Institute of Mining and Metallurgy Ext'racts...I (1v DEC 196f Printed in t!te Republic of South Africa by Hortors Limited, Johannesburg V r. 1 The...and n1anagement of the gold mining industry in South Africa -C. B. ANDERSON . . . . . . . . . page r J ... ( 2. The economy of the Union of South Africa-W. J. BusSCI-IAU 9 3. An introduction to the physical |  | | Report (volume) | | Petroleum Systems: The Emerging Potential in North Africa The Geological Society of London Books Editorial...Petroleum Systems: The Emerging Potential in North Africa. Geological Society, London, Special Publications...Petroleum Systems: The Emerging Potential in North Africa. Geological Society, London, Special Publications...Petroleum Systems: The Emerging Potential in North Africa EDITED BY J. CRAIG Eni Exploration and Production...Printed by MPG Books Ltd, Bodmin, UK Distributors North America For trade and institutional orders: The |  | | Report (volume) | | (Japan) Gonzalo Veiga (Argentina) Maarten de Wit (South Africa) IUGS/GSL publishing agreement This volume...DONNADIEU, Y. Modelling the Snowball Earth 151 Africa SHIELDS-ZHOU, G. A., DEYNOUX, M. & OCH, L. The...Neoproterozoic glaciation in the Taoudéni Basin, NW Africa 163 MASTER, S. & WENDORFF, M. Neoproterozoic...diamictites of the Katanga Supergroup, Central Africa 173 TAIT, J., DELPOMDOR, F., PRÉAT, A., TACK...sequences of the West Congo and Lindi/Ubangi Supergroups in the Congo Craton, Central Africa 185 HOFFMAN |  | | Journal (volume) | | principal purpose was to investigate a presumed south-setting bottom current that ran counter to the Gulf...lt was a tough choice but, instead, I hitchhiked west to the Unive:rsity of Illinois choosing that school...was regarded as well-traveled baving been as far west as Chicago, built a logv.1ood dye factory in Haiti...Institution with the research of Henry C. Stetson and the West Coast with the studies of Francis P. Shepard. Emery...progra1n would provide more officers for WWII than even West Point. When I received my PhD in June 1941, I quickly |  | | Journal (volume) | | XXV.$10.00 McGRAW-HILL BOOK COMPANY, INC. 239 WEST 39TH STREET, - - NEW YORK THE MINERAL INDUSTRY...Volumes I to XXIV McGRAW-HILL BOOK COMPANY, 239 WEST 39TH STREET. LONDON: HILL PUBLISHING CO., 6 & 8...Journal, New York, N. Y. H. Instructor in Mining, South Bethlehem, Pa. Lehigh Metallurgy of Zinc. University...Ferro Alloy Colo. Asst. Editor, Mineral Industry, South Bethle¬ hem, Pa. Arsenic. Bismuth. Cadmium. Manganese...Electric Professor of Geology, Lehigh University, South Bethlehem, Pa. Co., Graphite. Tungsten. v VI |  | | Report (issue) | | Rhodesian Branch of the Geological Society of South Africa and held at the University o, Rhodesia, Salisbury...(Pvt.) Limited Anglo Amt:rican Corporation of South Africa Limited Corsyn Consolidated ~lines Limited Gold...the diversityof the mincr.t.lwealth of S~uthcrn Africa. The connectingtheme,as indicatedby the title.is...\n11mon>On,..,of the 167 Murchi,on Grccn,tonc Belt, South \fn,.1 . . . . . • • . . • • • • • • • • • • • R...ih<'llt; 'Jill m ~. ,,Id. and in the v.~tl and southnformabl) ,,, crlJ1nb) the -.c:d,mcnt |
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