 | | Journal (article/letter/editorial) | | the Sishen and Sishen South (Welgevonden) iron ore deposits, Northern Cape Province, South Africa M. D...Palaeo-Proterozoic Transvaal Supergroup in the Northern Cape Province of South Africa is host to the largest known resources...being exploited at Sishen and Beeshoek. Hematite occurrences on the Sishen South exploration project...project (some 65 km south of Sishen mine) are, at present, the focus of an intensive investigation. At both...both the Sishen and Sishen South deposits, mineralisation is found within lithologies belonging to the Transvaal |  | Basson, I.J., Anthonissen, C.J., McCall, M.J., Stoch, B., Britz, J., Deacon, J., Strydom, M., Cloete, E., Botha, J., Bester, M., Nel, D. (2017) Ore-structure relationships at Sishen Mine, Northern Cape, Republic of South Africa, based on fully-constrained implicit 3D modelling. Ore Geology Reviews, 86. 825-838 doi:10.1016/j.oregeorev.2017.04.007 | Journal (article/letter/editorial) | | Ore-Structure Relationships at Sishen Mine, Northern Cape, Republic of South Africa, Based on Fully-Constrained...Ore-Structure Relationships at Sishen Mine, Northern Cape, Republic of South Africa, Based on Fully-Constrained... Ore-Structure Relationships at Sishen Mine, Northern Cape, Republic of South Africa, Based on Fully-Constrained...West, South Africa 2 Sishen Iron Ore Company (Pty) Ltd., Private Bag X506, Kathu, 8446, South Africa...0157, South Africa Abstract A fully-constrained, implicit, 3D geological model of Sishen Mine reveals |  | Moore, John M., Kuhn, Barbara K., Mark, Darren F., Tsikos, Harilaos (2011) A sugilite-bearing assemblage from the Wolhaarkop breccia, Bruce iron-ore mine, South Africa: Evidence for alkali metasomatism and 40Ar-39Ar dating. European Journal of Mineralogy, 23 (4) 661-673 doi:10.1127/0935-1221/2011/0023-2117 | Journal (article/letter/editorial) | | Bruce iron-ore mine, South Africa: Evidence for alkali metasomatism and 40Ar-39Ar dating JOHN M. MOORE1,...Geology, Rhodes University, Grahamstown 6140, South Africa *Corresponding author, e-mail: h.tsikos@ru.ac...breccia at the Bruce iron-ore mine, Northern Cape Province, South Africa. The upper portion of the breccia...similar mineralogy, comprising albite, K-feldspar, quartz, sugilite, norrishite, serandite, armbrusterite...Similarities to sugilite-bearing assemblages at the Wessels mine in the Kalahari Manganese Field suggest that a single |  | | Journal (article/letter/editorial) | | c development of the Sishen South (Welgevonden) iron ore deposit, South Africa, as deduced from ground...Palaeoproterozoic Transvaal Supergroup in the northern Cape Province of South Africa hosts high grade (.60%Fe) hematitic...structure known as the Maremane dome. The bulk of South Africa’s iron ore production is currently provided...megaton Sishen iron ore mine on the northern end of the dome, and the smaller Assmang Beeshoek mine on the...the southern closure. The undeveloped Sishen South deposit, which contains ,400 Mt of high-grade hematite |  | | Journal (volume) | | Banded Iron Formation-Hosted Hematite Ore Deposits John G. McLellan and Nicholas H. S. Oliver 185 Part...Warren Thorne, Steffen Hagemann, Adam Webb, and John Clout v 197 Chapter 9: The Itabirites of the...Approach to the Sishen South Iron Ore Deposit, Northern Cape Province, South Africa, and Its Implication...Deposit, Simandou Range, Republic of Guinea, West Africa I. L. Cope, J. J. Wilkinson, A. J. Boyce, J. B...ore exploration project in the Northern Cape province of South Africa. He completed his B.Sc. (Hons) |  | | Journal (article/letter/editorial) | | manganese ores of the Postmasburg manganese field, South Africa J. GUTZMERAND N. J. BEUKES Department of Geology...University, P.O. Box 524, Auckland Park, 2006, South Africa Abstract The diagenetic to very low-grade metamorphic...peak metamorphic conditions. It is suggested that local variations of the metamorphic mineral association...Transvaal Supergroup, manganese ore, Postmasburg, South Africa. Introduction TIlE manganese ores of the Postmasburg...Supergroup is overlain unconformably by red beds of the Gamagara Formation of the late Palaeoproterozoic (2.2-1 |  | | Journal (article/letter/editorial) | | years ago, of high-grade iron ore deposits in South Africa, India and Brazil, including a comparison with...BIF-hosted high-grade hematite iron ore deposits in South Africa, India, Western Australia and Brazil reveal...the Griqualand West region of South Africa, including the giant Sishen deposit, that are regarded to...University, PO Box 524, Auckland Park 2006, South Africa and Dr Mukhopadhyay is in the Department of...years ago, of highgrade iron ore deposits in South Africa, India and Brazil, including a comparison with |  | | Journal (article/letter/editorial) | | deposits of the Postmasburg manganese-field, South Africa E. von Plehwe-Leisen, D.D. Klemm Department...r t h e r n C a p e P r o v i n c e / S o u t h Africa. T h e y are a s s o c i a t e d to a geological...events. Local geology The stratigraphic development of the Griqualand West Sequence in the Northern Cape...the lithostratigraphic classification of SACS (South African Committee for Stratigraphy) of 1980 is used...The erosional period in the North, East and the South of the Maremane Dome lasted until Asbestos Hills |  | Costin, Gelu, Fairey, Brenton, Tsikos, Harilaos, Gucsik, Arnold (2015) Tokyoite, As-Rich Tokyoite, and Noélbensonite: New Occurrences From the Postmasburg Manganese Field, Northern Cape Province, South Africa. The Canadian Mineralogist, 53 (6) 981-990 doi:10.3749/canmin.1500063 | Journal (article/letter/editorial) | | THE POSTMASBURG MANGANESE FIELD, NORTHERN CAPE PROVINCE, SOUTH AFRICA GELU COSTIN Department of Geology...Rhodes University, P.O. Box 94, Grahamstown 6140, South Africa Department of Earth Science, MS-126 Rice University...Rhodes University, P.O. Box 94, Grahamstown 6140, South Africa ARNOLD GUCSIK Department of Geology, University...University of Johannesburg, Johannesburg, South Africa ABSTRACT Samples of manganese-rich rock containing...from the Postmasburg area in the Northern Cape Province of South Africa. The samples consist of fine-grained |  | | Journal (article/letter/editorial) | | of the Transvaal Supergroup, Griqualand West, South Africa HUBERT WIGGERING FB 9 Geologic, Universittit...University, P.O. Box 524, 2000 Johannesburg (South Africa) (Received February 12, 1989; accepted June...of the Transvaal Supergroup, Griqualand West, South Africa. Precambrian Res., 46: 241-258. A 4-m-thick...km northwest of Hotazel in Griqualand West, South Africa. The paleo-alteration profile is developed on...assemblage of Fe-pumpellyite, chlorite, albite, and quartz, before paleosol development. The subsequent paleo-alteration |  | | Journal (article/letter/editorial) | | THF,Postmasburg manganese field,situated in the Northern replacement of the countryrockbymanganeseCapeProvince...In contrast Schneiderh6hn (1931)suggested in the south(Fig. 1). Miningof the manganese orescom- Borchert...ores of the Postmasburg mangacurrently minedat Sishen (VanSchalkwyk andBeukes,1986) nesefieldandprovides...ng AnalyticalTechniques the centralpartof the Gamagara ridge.Siliceous oresoccur in the Easternbelt alongthe...100 the northernand southernextremitiesof the Gamagara manganese oresamples, covering all macroscopically |  | | Journal (article/letter/editorial) | | (CPO) OE HEMATITE ORES EROM THE SISHEN MINE, NORTHERN CAPE PROVINCE, SOUTH AERICA H. SIEMES Institut fCir...siemes@rwth-aachen.de © 2013 June Geological Society of South Africa ABSTRACT Banded iron fonnatiotis (BIFs) are...composed of major amounts of magnetite, hematite and quartz, with variable atnounts of iron bearing tiiinerals...tratisforined to high grade iron ores by removal of quartz and transformation of almost all iron bearing minerals...can be determined by neutron diffraction and the local texture on small areas of polished sections by electron |  | Choudhary, Babita R., Ernst, Richard E., Xu, Yi-Gang, Evans, David A.D., de Kock, Michiel O., Meert, Joseph G., Ruiz, Amarildo S., Lima, Gabrielle A. (2019) Geochemical characterization of a reconstructed 1110 Ma Large Igneous Province. Precambrian Research, 332. 105382 doi:10.1016/j.precamres.2019.105382 | Journal (article/letter/editorial) | | CAS, Guangzhou, 511 Kehua Street, Wushan, Tianhe District, Guangzhou, GD 510640 (*choudhary.r.babita@gmail...PO Box 524, Auckland Park, 2006 Johannesburg, South Africa 6. Department of Geological Sciences, University...(LIP) fragments in the Kalahari craton, southern Africa (Umkondo LIP); Dronning Maud Land, Antarctica;...fragments are present in the Kalahari craton, southern Africa (Umkondo LIP); Dronning Maud Land, Antarctica;...1112–1108 Ma) into the Kalahari craton of southern Africa (de Kock et al., 2014; Hanson et al., 2006). The |  | | Journal (article/letter/editorial) | | Paleoproterozoic red shales of the Gamagara/Mapedi Formation, Postmasburg Group, South Africa Kosei E. Yamaguchi Institute...ohmoto@geosc.psu.edu © 2006 March Geological Society of South Africa ABSTRACT The occurrence of red shales in Precambrian...samples from the ~2.2 Ga Gamagara/Mapedi Formation of the Postmasburg Group, South Africa were analyzed for...oxygenated atmosphere. The Kaapvaal Craton in southern Africa hosts well-preserved sedimentary successions of...oldest red shales occur in the Paleoproterozoic Gamagara/Mapedi Formation of the Postmasburg Group, Transvaal |  | Fairey, Brenton J., Timmerman, Martin J., Sudo, Masafumi, Tsikos, Harilaos (2019) The Role of Hydrothermal Activity in the Formation of Karst-Hosted Manganese Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa. Minerals, 9 (7) 408 doi:10.3390/min9070408 | Journal (article/letter/editorial) | | Deposits of the Postmasburg Mn Field, Northern Cape Province, South Africa Brenton J. Fairey 1,† , Martin J...Geology, Rhodes University, Grahamstown 6139, South Africa Correspondence: h.tsikos@ru.ac.za Current address:...Postmasburg Manganese Field (PMF), Northern Cape Province, South Africa, once represented one of the largest...Postmasburg manganese field; hydrothermal; karst; South Africa Minerals 2019, 9, 408; doi:10.3390/min9070408...(KMF), the Postmasburg Manganese Field (PMF) was South Africa’s largest producer of this important component |  | | Journal (article/letter/editorial) | | Lime Limited, Private Bag, 8410 Lime Acres, South Africa Received: 8 July 1994/Accepted: 9 December 1994...m). There, the largest limestone deposits of South Africa are located. The deposit at Lime Acres and mining...early Proterozoic, the Kaapvaal craton of southern Africa hosted three major sub-basins, in which clastic...Province of South Africa, the Griqualand West basin in the northern Cape Province of South Africa, and the...Province and correlative rocks of the northern Cape Province the South African Committee for Stratigraphy |  | | Journal (article/letter/editorial) | | metamorphosed banded iron formations, Northern Province, South Africa Received: 4 July 1996 / Accepted:...ore would be quite unique in a South African context as South Africa is well endowed with high-grade...of enrichment. The low-grade iron ores in the Northern Province represent meta-banded iron formations...The main iron-bearing mineral is magnetite. The Northern Province ores have to be milled to sizes smaller...the largest integrated steel manufacturer in South Africa, employs a 40-year raw materials resource plan |  | | Journal (article/letter/editorial) | | series of hematite samples (.98 % Fe2O3, Sishen Mine, South Africa) with different initial grain sizes of...hematite and quartz. Compared to hematite the measured recrystallized grain size of quartz is always larger...recrystallized grain size-based piezometers for hematite and quartz if deformed at similar stress below about 100 MPa...refinement, grain size coarsening, hematite piezometer, quartz piezometer. 1. Introduction Hematite Fe2O3 is...relationships for various rock-forming minerals (e.g., quartz, calcite, feldspar, olivine) were theoretically |  | De Kock, M.O., Monareng, B.F., Blignaut, L., Smith, A.J.B., Beukes, N.J. (2020) Geochemistry of Paleoproterozoic saprolite developed in diabase intruding the Hotazel Formation in the Avontuur deposit of the Kalahari Manganese Field, South Africa. South African Journal of Geology, 123 (1). 1-18 doi:10.25131/sajg.123.0001 | Journal (article/letter/editorial) | | Avontuur deposit of the Kalahari Manganese Field, South Africa M.O. De Kock, B.F. Monareng, L. Blignaut, A... Box 524, Auckland Park 2006, Johannesburg, South Africa e-mail: mdekock@uj.ac.za; bfmonareng@gmail.com;...njbeukes@uj.ac.za © 2020 Geological Society of South Africa. All rights reserved. Abstract A diabase sill...Avontuur deposit of the Kalahari Manganese Field of South Africa displays an 8 m thick paleosaprolitic weathering...base of the ~2.0 Ga red-bed succession of the Gamagara Formation of the Elim Group (Keis Supergroup) |  | | Journal (article/letter/editorial) | | figures and 1 plate Zusammenfassung Aus der FERTECO-mine, Eisernes Viereck, M.G. Brasilien, werden Mineralogie...cocTaBaermbix nopo~aMn BbmeTpm~anmq,.3 perriona Ferteco-mine, M.G. Bpa3Hnm4. Hponcxo:~(~e~He ~x CB~IBbIBatOTC...newformation of magnetite, traces of Mn-minerals and local elevated gold contents. The canga on top is interpreted...formation BIF (banded iron formation) (rEgion de la mine de FERTECO, M.G., Br&il). Ces min&aux lat&itiques...IF) Maaganore eroded ] t O. :3 O L~ Gamagara Fm (Sishen Shale) n.LU ' 9.-'.:.:~!~ii (3. ~9 . . Conglomerates |  | | Book | | 2. Model Test Area: Moanda Deposit, Gabon, West Africa 2.2.2.1. Introduction 20 20 23 23 23 25 25 27...Postmasburg Region, Griqualand West, Cape Province, South Africa 3.3.1. Geological Setting 3.3.2. Genesis...Manganese Ore Formation Manganese Ore Deposits of North Africa: Imini, Morocco 3.4.1. Geological Setting 3.4.2...varieties of glass, that are the usual mixtures of the quartz sands. Plinium explained the origin of the word...ancient glaciers, and the glaciation epoch of the northern countries - in Scotland, in Scandinavia, in Finland |  | | Journal (article/letter/editorial) | | (Karatau, Khubsugul, and South China basins), Australia (Georgina basin), Africa Fig. 1. Geological structure...(1) Proterozoic, Kokdzhot Formation: phyllites, quartz–sericite–chlorite schists (Prt1); (2) Lower Cambrian...Karatau range (Kazakhstan). (b) Section of the northern Tszyangsi Province (Bushinskii, 1966). (c) Section...Depression (Bushinskii, 1966). (d, e) Sections in the northern Sinan Depression (Bushinskii, 1966). (1) Gneisses...(11) Mn-bearing rocks. (Upper Volta, Benin), and South America (Minas Gerais basin). North America is the |  | | Journal (article/letter/editorial) | | Deposit—Kalahari Manganese Ore Field (Northern Cape, South Africa): Geochemistry of Isotopes (δ13C and...1134/S0024490212030054 The Northern Cape manganese ore province (South Africa) is confined to the Kalahari...southeastern Kalahari Desert (Fig. 1) 60 km north of the Sishen Settlement. The province accommodates huge manganese...Manganese ores of the Kalahari Desert (Northern Cape province, South Africa) are confined to rocks of the Hotazel...Supergroup (Fig. 2). At ore deposits in the Northern Cape province, the Early Proterozoic section of the |  | | Book (edition) | | Southern Africa a Collector’s Guide ■ Rocks, Minerals and Gemstones of Southern Africa & — - ... T ~ '' .rats en&nes L of Southern Africa A Collector’s Guide - Struik Publishers (an operating...Ltd.) Struik House Oswald Pirow Street Foreshore, Cape Town 8001 First edition 1976 Second edition 1983...©E.K. Macintosh Cover design by Neville Poulter, Cape Town Lithographic reproduction by Tien Wah Press...Ltd, Singapore Photoset by McManus Bros (Pty) Ltd, Cape Town Printed and bound by Interpak, Pietermaritzburg |  | | Journal (article/letter/editorial) | | in the Lower Proterozoic sequences of southern Africa Patrick G. Eriksson a and Eric S. C h e n e y b"...Geology, University of Pretoria, Pretoria 0002, South Africa bDepartment of Geology, Rand Afrikaans University...University, P.O. Box 524, Johannesburg 2000, South Africa (Received January 10, 1991; accepted after revision...southern Africa. Precambrian Res., 54: 257-269. Strata > 2.5 to ~< 1.8 Ga in southern Africa appear to...PROVINCE 26°S -26°8 +. J 400kin I aziland l SOUth ~ f r i c a / keso~ho 100kin I i I 26°E C |
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