 | | 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...high-grade hematite deposits stand in contrast to martite–goethite ores which are generally accepted to be...the deposits in the Griqualand West region of South Africa, including the giant Sishen deposit, that are...University, PO Box 524, Auckland Park 2006, South Africa and Dr Mukhopadhyay is in the Department of |  | | Journal (article/letter/editorial) | | Structural Controls on Fe Mineralization at Thabazimbi Mine, South Africa I.J. Basson, C. Koegelenberg PII: DOI:...Structural Controls on Fe Mineralization at Thabazimbi Mine, South Africa, Ore Geology Reviews (2016), doi: 10...Structural Controls on Fe Mineralization at Thabazimbi Mine, South Africa I.J. Basson, C. Koegelenberg Tect Geological...Consulting, Unit 8, AMDEC House, Steenberg, South Africa T Abstract IP Chemical-sedimentary rocks...development of the Mohlapitsi Belt. Several of Kumba’s Thabazimbi iron ore deposits, including Kwaggashoek East |  | | Journal (article/letter/editorial) | | hematite-dolomite (calcite) assemblages (Carajás, Thabazimbi). Introduction Economic high-grade hematite...economic deposits occur in the Transvaal of South Africa and in India (Bailadila and Orissa mining areas)...United States, Canada, and the Ukraine (Krivoy Rog district) are all but mined out. Premining ore reserves...Quadrilátero Ferrífero in Brazil, and Thabazimbi in South Africa. Although not all of these are discussed...Bailadila Hamersley Quadrilátero Ferrí fero Thabazimbi FIG. 1. Locations of high-grade hematite deposits |  | | Journal (volume) | | Banded Iron Formation-Hosted High-Grade Hematite-Martite Iron Ores J. Gutzmer, Benny C. Chisonga, Nicolas...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...exploration project in the Northern Cape province of South Africa. He completed his B.Sc. (Hons) degree in 1980...as on the Sishen South iron ore deposit in the Northern Cape province of South Africa. his work on depositional |  | Möller, V., Klemd, R., Joachimski, M., Barton, J.M. (2014) Hydrothermal controls on iron and lead mineralization on the farms Leeuwbosch and Cornwall, Thabazimbi District, South Africa. Ore Geology Reviews, 63. 40-63 doi:10.1016/j.oregeorev.2014.04.009 | Journal (article/letter/editorial) | | the farms Leeuwbosch and Cornwall, Thabazimbi District, South Africa V. Möller a,b,1, R. Klemd a, M. Joachimski...of Fort Hare, Private Bag X1314, Alice 5700, South Africa a r t i c l e i n f o Article history: Received...April 2014 Keywords: Hematite Galena Leeuwbosch Thabazimbi Fluid inclusions Stable isotopes a b s t r a...Leeuwbosch and Cornwall north of Thabazimbi (Limpopo Province, South Africa) host hydrothermal Pb–Ag– Cu–Zn...deposits which include the historic Leeuwbosch lead mine. Based on ore petrography, fluid inclusion and stable |  | | Journal (article/letter/editorial) | | geometry and continuity of mineralised domains include south-dipping thrust faults that developed along the Mount...deposit, Simandou Range, Republic of Guinea, West Africa I. L. Cope1, J. J. Wilkinson1, R. J. Herrington2...Science and Engineering, Imperial College London, South Kensington Campus, Exhibition Road, London SW7 2AZ...Origin of high-grade iron ores at the Thabazimbi Deposit, South Africa J. Gutzmer, N. J. Beukes, M. O. de...Johannesburg, PO Box 524, Auckland Park 2006, South Africa. The Thabazimbi iron ore deposit comprises a series |  | Oberthür, Thomas, Melcher, Frank, Fusswinkel, Tobias, van den Kerkhof, Alfons M., Sosa, Graciela M. (2018) The hydrothermal Waterberg platinum deposit, Mookgophong (Naboomspruit), South Africa. Part 1: Geochemistry and ore mineralogy. Mineralogical Magazine, 82 (3) 725-749 doi:10.1180/minmag.2017.081.073 | Journal (article/letter/editorial) | | The Hydrothermal Waterberg Platinum Deposit, Mookgophong (Naboomspruit), South Africa – Part 1 – Geochemistry...*Email: mut.oberthuer@yahoo.de Abstract The Waterberg Platinum deposit is an extraordinary example of...opaque mineral and the lack of sulfides. The “Waterberg type” mineralization is characterized by unique...target area would be along the corridor of the Thabazimbi-Murchison-Lineament where geothermal springs...presently still active. 2 Keywords: Hydrothermal Waterberg Platinum Deposit, Bushveld Complex, platinum-group |  | | Journal (article/letter/editorial) | | the Carajas area in Brazil, the Transvaal of South Africa and the Krivoy Rog area of the Ukraine. This...and the two detached surficial martite–goethite orebodies to the south (Section 6 and Section 7) are of...Fault, and the Box Cut Fault, are prominent in the mine area but appear to die out rapidly both laterally...mineralisation types are present in the M ount Tom Price mine area (F ig. 1), though only one type is mineable...randomly oriented fine-grained platy hematite and martite. On the downthrown side of the Southern Batter |  | Rasmussen, Birger, Fletcher, Ian R., Muhling, Janet R., Thorne, Warren S., Broadbent, Graeme C. (2007) Prolonged history of episodic fluid flow in giant hematite ore bodies: Evidence from in situ U–Pb geochronology of hydrothermal xenotime. Earth and Planetary Science Letters, 258 (1) 249-259 doi:10.1016/j.epsl.2007.03.033 | Journal (article/letter/editorial) | | high-grade hematite ore bodies from the Mount Tom Price mine in the Hamersley Province, northwestern Australia...hematite ore and as coarser crystals intergrown with martite (hematite pseudomorph after magnetite) and microplaty...of iron ore, with notable examples in Brazil, South Africa, India and Australia [1]. The best-studied examples...microplaty hematite and martite in high-grade iron-ore from the Mount Tom Price mine (Fig. 1). This deposit...deformation intensity and metamorphic grade from north to south. The tectonostratigraphic history of the province |  | | Report (issue) | | SURVEY OF SOUTH AFRICA COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA MINERALOGY OF SOUTH AFRICA:... COUNCIL FOR GEOSCIENCE GEOLOGICAL SURVEY OF SOUTH AFRICA Scientific Editor R.D. Dixon Linguistic and...Council for Geoscience (Geological Survey of South Africa), 280 Pretoria Street, Silverton, Pretoria or........................... 69 5.1 Overview of South African Occurrences ..............................LAYEREDSUITE,BUSHVELDCOMPLEX.... 111 MINERALOGY OF SOUTH AFRICA: TYPE-MINERAL SPECIES AND TYPE-MINERAL NAMES |  | Hensler, Ana-Sophie, Hagemann, Steffen G., Brown, Philip E., Rosière, Carlos A. (2014) Using oxygen isotope chemistry to track hydrothermal processes and fluid sources in itabirite-hosted iron ore deposits in the Quadrilátero Ferrífero, Minas Gerais, Brazil. Mineralium Deposita, 49 (3) 293-311 doi:10.1007/s00126-013-0486-z | Journal (article/letter/editorial) | | generations, from oldest to youngest: magnetite → martite (hematite pseudomorph after magnetite) → granoblastic...showed that the δ18O composition of ore-hosted martite ranges between −4.4 and 0.9‰ and is up to 11‰ depleted...iron ore-hosted martite and (2) a minor positive shift in δ18Ofluid values from martite to specular hematite...were involved in the formation of hematite- and martite-rich ore of the QF. Furthermore, they suggest a...of Brazil, the ore bodies of the Transvaal in South Africa, the iron ore deposits of the Noamundi area |  | | Journal (article/letter/editorial) | | 1966, pp. 572-581 ALTERED PYROCLASTIC ROCKS IN SOUTH AFRICAN IRON-FORMATION GENE L. LABERGE ABSTRACT...the iron-formation of the Transvaal Systemin South Africa. It is basedupon observationsmade in the field...Western Australia. The writer spent 2 monthsin South Africa examining,and collecting samplesfrom, a numberof...which sampleswere collectedinclude Penge and Thabazimbi in the Transvaal, and Kuruman, Sishen, Lohatla... N ,, Ik •.M -" • 0 BECHUANALAND I! / ,THABAZIMBI•:•Ikn •.PENGE •..A ' ..' • •o •M /.• dOHA•NESeUae |  | | Journal (article/letter/editorial) | | Proterozoic Dales Gorge Member and consists of martite-microplaty hematite ore. Three hypogene alteration...hematite-ankerite-magnetite, and (3) proximal martite-microplaty hematite-apatite alteration zones. Fluid...tite hydrothermal assemblage leaving a porous martite-microplaty hematite-apatite mineral assemblage...types: MesozoicTertiary martite-goethite (M-G) ores and Precambrian martite-microplaty hematite (Mr-mpH)...Historically, models for the formation of high-grade martite-microplaty hematite (>65 % Fe) iron ore 767 |  | 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 |  | Thorne, W. S., Hagemann, S. G., Sepe, D., Dalstra, H. J., Banks, D. A. (2014) Structural Control, Hydrothermal Alteration Zonation, and Fluid Chemistry of the Concealed, High-Grade 4EE Iron Orebody at the Paraburdoo 4E Deposit, Hamersley Province, Western Australia. Economic Geology, 109 (6) 1529-1562 doi:10.2113/econgeo.109.6.1529 | Journal (article/letter/editorial) | | enhanced heat flow within sedimentary basins to the south of the Paraburdoo Range. Heated basinal brines were...et al., 1990) for the formation of high-grade, martite-microplaty hematite iron deposits, which have been...2007b) has described the formation of high-grade, martite-microplaty hematite ore by the multistage interaction...of the main pit into the McRae Shale, below the martite-microplaty ore and along the hanging wall of the...BIF, transitional between BIF and high-grade, martite-microplaty ore, both below and lateral to the 4E |  | 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) | | -y ARTICLE 3D implicit modeling of the Sishen Mine: new resolution of the geometry and origin of Fe...faults that show relatively minor uplift to the south, probably due to the Lomanian Namaqua-Natal Orogeny...Leapfrog™ Introduction Mined since 1953, Sishen Mine near the town of Kahtu in the Northern Cape Province...Town, South Africa 2 Sishen Iron Ore Company (Pty) Ltd., Private Bag X506, Kathu 8446, South Africa...Centurion Gate, 124 Akkerboom Road, Centurion 0157, South Africa 4 Department of Earth Sciences, Stellenbosch |  | | Journal (article/letter/editorial) | | world’s premier iron ore regions with high-grade martite-microplaty hematite iron ore deposits mostly hosted...role in the formation of high-grade (>63 wt % Fe) martite-microplaty hematite iron ore deposits of the Pilbara...et al., 1999; Powell et al., 1999). High-grade martite-microplaty hematite iron ore deposits, such as...iron formation (BIF; ~35 wt % Fe) to high-grade martite-microplaty hematite ore, the study of their oxygen...al., 1999; Oliver et al., 2007) and high-grade martite-microplaty hematite ore deposits (Hagemann et al |  | | Journal (article/letter/editorial) | | GENESIS OF THE IRON ORES OF THE PRETORIA SOUTH HARTMUT SERIES, AFRICA SCHWEIGART CONTENTS PAGE Abstract...of onkolithsor stromatoliths IRON ORES OF SOUTH AFRICA 271 are onkolitesor stromatolites (31); and...precipitated marine sediments, IRON ORES OF SOUTH AFRICA 273 theiron-bearing solutions beingof continental...2 MAIN IRON ORE RESERVES OF THE REPUBLIC OF SOUTH AFRICA Oregrade high low Fe-oontentReserves in 106tons...epigenetic,post-Transvaalin age. IRON ORES OF SOUTH .4FRIC,4 275 DolomiteSeries.--Followingconformablyon |  | | Report (chapter) | | the upgrading of iron formation to high-grade martite– goethite (M-G) ores, and also led to the proposal...supergene-metamorphic model for generating high-grade martite –microplaty hematite (M-mplH) ore (Morris 1985...the deposits in the Transvaal Supergroup in South Africa (Beukes et al. 2003; Gutzmer et al. 2005) and...and the Quadrilátero Ferrı́fero district of Minas Gerais in Brazil (Rosière & Rios 2004; Rosière et...chemistry† Martite – mplH-(goethite) M-mplH-(G) 4800 (Brockman IF) (ochreous) goethite– martite ore M-(o)G |  | | Journal (article/letter/editorial) | | PO Box 524, Auckland Park, Johannesburg 2006, South Africa JOYDIP MUKHOPADHYAY, Paleoproterozoic Mineralization...PO Box 524, Auckland Park, Johannesburg 2006, South Africa, and Department of Geology, Presidency College...PO Box 524, Auckland Park, Johannesburg 2006, South Africa Abstract High-grade hematite ores of the Iron... and massive ores composed almost entirely of martite. Supergene ores, in contrast, are comprised of...Cretaceous-Cenozoic laterite profile. Hard hematite-martite ores formed by hydrothermal replacement of BIF |  | | Journal (article/letter/editorial) | | DECEMBER, 1953 No. 8 IRON DEPOSITS OF THE CONGONHAS DISTRICT, MINAS GERAIS, PHILIP W. BRAZIL2 GUILD. ...capacityis not great. Poor to fair highwayslink the district with Rio and other cities, and connect the various...iron and steel have beenmade with charcoal. The local capacityhas risen steadilyto its presentone of about400...secondblastfurnaceis underconstruction. This mill, the largestin South America,getsall its ore from Minas Gerais. Exports...percentiron. The greaterpart comesfrom the Itabira district (35) on the Victoria-Minas railroad. Most of the |  | | Journal (article/letter/editorial) | | iron formation with typically 25 to 45 wt-%Fe; martite–goethite ore formed by supergene processes, with...In the Hamersley province of Western Australia, martite– goethite ores are largely developed in the Marra...formation with typically 25 to 45 wt-%Fe (ii) martite–goethite ore formed by supergene processes, with...supergene enrichment with 60 to 68 wt-%Fe (Table 1).10 Martite is a commonly used textural term to denote hematite...saleable concentrate. Approximately 700 Mt of run-of-mine ore and 200 Mt of magnetite concentrates were produced |  | | Report (issue) | | famous Mesoarchean Witwatersrand Supergroup in South Africa that contains Earth’s largest gold-uranium deposits...post-depositional processes in uranium ores at the Stanleigh mine, Elliot Lake, Ontario, Canada.....................glacier-associated sediments of the Neoproterozoic of south China: Oceanic anoxia or sulfate limitation? .....botryoids at a 350 Ma fossil warm spring at the Tynagh mine, Ireland: (A) The top surface (field of view measures...seepage mound favored—depending on solutes and local pH—development of siderite, ferrous hydroxide, and/or |  | | Journal (article/letter/editorial) | | during ore stage 3, forming granular magnetite-martite ore is related to a subsequent hydrothermal event...high-grade, locally (at K deposit) high P goethite-martite ore. At Koolyanobbing, the two geochemically distinct...the formation of hypogene magnetite-specularite-martite–rich ore and recent supergene modification, including...formed various types of magnetite-, specularite-, martite-, and goethite-rich iron ore types (Lascelles,...Structures rth No 53 Psammite, pelite Quartz-martite/magnetite BIF Quartzite (after chert) Massive pyrite |  | | 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; |
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