 | | 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...resources of high-grade hematite ore on the Southern African continent. These ores are currently being...being exploited at Sishen and Beeshoek. Hematite occurrences on the Sishen South exploration project (some...(some 65 km south of Sishen mine) are, at present, the focus of an intensive investigation. At both the |  | 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 |  | Stoch, B., Anthonissen, C. J., McCall, M-J., Basson, I. J., Deacon, J., Cloete, E., Botha, J., Britz, J., Strydom, M., Nel, D., Bester, M. (2018) 3D implicit modeling of the Sishen Mine: new resolution of the geometry and origin of Fe mineralization. Mineralium Deposita, 53 (6) 835-853 doi:10.1007/s00126-017-0784-y | Journal (article/letter/editorial) | | 1007/s00126-017-0784-y ARTICLE 3D implicit modeling of the Sishen Mine: new resolution of the geometry and origin of...The Sishen deposit is one of the largest iron ore concentrations in current production. Hematite mineralization...faults that show relatively minor uplift to the south, probably due to the Lomanian Namaqua-Natal Orogeny...ore volumes, implying that Fe mineralization at Sishen cannot be exclusively attributed to supergene enrichment...Introduction Mined since 1953, Sishen Mine near the town of Kahtu in the Northern Cape Province (RSA) represents |  | 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...Similarities to sugilite-bearing assemblages at the Wessels mine in the Kalahari Manganese Field suggest that a single...sugilite, alkali metasomatism, manganese, breccia, South Africa, 40Ar/39Ar dating, armbrusterite. 1. Introduction |  | | 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 Africaās 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 undeveloped Sishen South deposit, which contains ,400 Mt of high-grade hematite ore, is located y9 |  | | Journal (volume) | | of Banded Iron Formation-Hosted High-Grade Hard Hematite DepositsāA Paleomagnetic Approach M. O. de Kock...Geochemistry of Banded Iron Formation-Hosted High-Grade Hematite-Martite Iron Ores J. Gutzmer, Benny C. Chisonga...of Giant Banded Iron Formation-Hosted Hematite Ore Deposits John G. McLellan and Nicholas H. S. Oliver...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 |  | Grobbelaar, W. S., Burger, M. A., Pretorius, A. I., Marais, W., van Niekerk, I. J. M. (1995) Stratigraphic and structural setting of the Griqualand West and the Olifantshoek Sequences at Black Rock, Beeshoek and Rooinekke Mines, Griqualand West, South Africa. Mineralium Deposita, 30 (2) 152-161 doi:10.1007/bf00189344 | Journal (article/letter/editorial) | | Beeshoek and Rooinekke Mines, Griqualand West, South Africa W.S. Grobbelaar, M.A. Burger, A.I. Pretorius...Manganese Mines of South Africa Limited, PO, Mancorp Mine, 8423, Beeshoek, South Africa Received: 13 May...iron ore is mined near P o s t m a s b u r g and Sishen, while manganese was mined in the Postmasburg M...200 km between R o o i n e k k e Mine in the south and Black Rock Mine in the north, in G r i q u a l a...distribution of geological features to the n o r t h and south of the M a r e m a n e D o m e structure, located |  | | Journal (article/letter/editorial) | | The geology and genesis of high-grade hematite iron ore deposits N. J. Beukes, J. G utzmer and J. M ukhopadhyay...years ago, of high-grade iron ore deposits in South Africa, India and Brazil, including a comparison with...Hamersley Province in Australia. Large, high-grade hematite iron ore bodies hosted by Precambrian banded iron...geochemistry of BIF-hosted high-grade hematite iron ore deposits in South Africa, India, Western Australia and...hydrothermal origin for most BIF-hosted highgrade hematite ore deposits. Differences between the deposits |  | | 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) | | 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 |  | | Journal (article/letter/editorial) | | of the manganese wadto braunitc, partridgeitc, hematite, andbixbyite. ThewadwasderivedfromMn- andFerichdolomites...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 |  | Costin, Gelu, Fairey, Brenton, Tsikos, Harilaos, Gucsik, Arnold (2015) Tokyoite, As-Rich Tokyoite, and NoĆ©lbensonite: 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...the Northern Cape Province of South Africa. The samples consist of ļ¬ne-grained braunite, hematite, and |  | | 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...characterized by concentration of Fe203, in the form of hematite, iron-rich chlorite and abundant sericite. The |  | | Journal (article/letter/editorial) | | ORIENTATION (CPO) OE HEMATITE ORES EROM THE SISHEN MINE, NORTHERN CAPE PROVINCE, SOUTH AERICA H. SIEMES Institut...siemes@rwth-aachen.de Ā© 2013 June Geological Society of South Africa ABSTRACT Banded iron fonnatiotis (BIFs) are...rocks composed of major amounts of magnetite, hematite and quartz, with variable atnounts of iron bearing...transformation of almost all iron bearing minerals to hematite. On macroscopic and microscopic scale the high...can be determined by neutron diffraction and the local texture on small areas of polished sections by electron |  | | Journal (article/letter/editorial) | | Paleoproterozoic red shales of the Gamagara/Mapedi Formation, Postmasburg Group, South Africa Kosei E. Yamaguchi Institute...ohmoto@geosc.psu.edu Ā© 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...potentially influenced by hydrothermal activity. Hematite, a pigmenting agent of the red shales, was probably...formation requires an oxidizing environment in which hematite (Fe2O3) is formed by the oxidation of Fe2+bearing |  | | Journal (article/letter/editorial) | | minerals(Hew- portant contributionshave been made by John de ett and Fleischer,1960), and the GriqualandWest...0861-0128/88/192/1108-1152.50 Mn DEPOSITS, SOUTH AFRICA 1109 Geologic Framework .ā¢ ā¢:ā¢:ā¢:ā¢:ā¢:ā¢:ā¢:ā¢:ā¢:ā¢...Asbesbergebanded iron-formation in the Postmasburg-Sishen areabe redefinedasthe Manganoreironformation of...FIG. 1. Simplifiedgeologicmap of the Griquatown-Sishen area (Institutefor CartographicAnalysis,Universityof...Stellenbosch). 1110 j. E. DE VILLIERS proximatelynorth-south,and regionalshearingand (includingmetamorphic deposits) |  | | Journal (article/letter/editorial) | | Mineralization in the Kalahari Manganese Field, South Africa D. A. D. EVANS,ā Tectonics Special Research...University, Auckland Park 2006, Johannesburg, South Africa AND J. L. KIRSCHVINK Division of Geological...enrichment in the Kalahari manganese field, South Africa, in order to assess mineralogical aspects of...remanence direction (MAM-1), associated with ādustyā hematite inclusions (1ā10 Āµm) that are omnipresent in the...metamorphic overprint (MAM-2), carried by recrystallized hematite (20ā250 Āµm), within both Mamatwan- and Wessels-type |  | 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,ā , 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 Africaās largest producer of this important component |  | | Journal (article/letter/editorial) | | Kumba resources (Sishen Iron Ore Mine), Private Bag X506, Kathu 8446, South Africa. Based on a contribution...specification of the lumpy ore product (ā25 +8 mm) at Sishen is >66%. If the near density material exceeds 6%...process BACKGROUND Kumba Resources, Sishen Iron Ore Mine in South Africa produces 26Ā·5 Mt iron ore per annum...consists mainly of laminated and massive type hematite ore that is crushed down to ā90 mm before being...3600ā4000 kg m -3) is higher than normal in the run of mine (ROM), a higher separation density is necessary |  | | Journal (article/letter/editorial) | | of a recrystallized grain size piezometer for hematite based on high-temperature torsion experiments...Abstract: A series of hematite samples (.98 % Fe2O3, Sishen Mine, South Africa) with different initial...0.10. The piezometer is applied to itabiritic hematite ores of the Iron Quadrangle, Minas Gerais, Brazil...consisting mainly of layered hematite and quartz. Compared to hematite the measured recrystallized grain...piezometers for hematite and quartz if deformed at similar stress below about 100 MPa. Key-words: hematite, torsion |  | | 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 |  | 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 Ā© 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 |  | | Journal (article/letter/editorial) | | DepositāKalahari Manganese Ore Field (Northern Cape, South Africa): Geochemistry of Isotopes (Ī“13C 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 |  | | 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 26Ā°S -26Ā°8 +. J 400kin I aziland l SOUth ~ f r i c a / keso~ho 100kin I i I 26Ā°E C |
|
