• Kolomela Iron Ore Mine, Northern Cape, South Africa ...

    Dec 27, 2014· The deposit consists of four varieties of highgrade haematite ores, namely clastictextured (29%), laminated (53%), collapse breccia (10%) and conglomeratic (8%). The lump to fine ratio of Kolomela’s ore is 60:40. Iron ore reserves at Kolomela . The estimated ore reserves at Kolomela stood at 200mt grading % Fe as of 31 December 2013.

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  • Borax Ore Deposits Geology

    Later was begun a more personal inquiry of the more strictly geologic features of the occurrence of borateminerals generally. Extensive investigation into metalliferous miningproperties in the neighborhood of certain of the larger boratedeposits gave opportunity to work out more in detail the geology of the districts in a way which before it was impossible satisfactorily to do.

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  • Iron ores of the Hotazel Formation, Northern Cape Province ...

    The thicker iron ore beds occur towards the top of the formation and can be up to 5 m thick. Both laminated and massive ores are developed and above the unconformity poorly sorted conglomeratic ore occurs in places. The laminated ore comprises fine to mediumgrained, compact, randomly orientated hematite aggregates, whereas the massive ore

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  • Iron Ore | Assmang Proprietary Limited

    The iron ore deposits are contained within a sequence of early Proterozoic sediments of the Transvaal Supergroup deposited between 2,500 and 2,200 million years ago. In general, two types of ore are present, namely the laminated hematite ore, which forms part of the Manganore iron formation, and the conglomerate ore, which belongs to the ...

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  • iron ore milling at jindal sawbhilwara

    Iron Ore Grinding At Jindal Sawbhilwara Jdconsult. Iron ore chanderia so weightwise it was cheaper to transport iron ore to coalfields rather than transporting coal to iron ore site 187 photographs of conglomeratic iron ore get price usgs minerals information iron ore iron ore is a mineral substance which when heated in the presence of a

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  • The structural/stratigraphic development of the Sishen ...

    Jul 18, 2013· The undeveloped Sishen South deposit, which contains ∼400 Mt of highgrade hematite ore, is located ∼9 km towards the southwest of Postmasburg. It forms a linear extension of the Beeshoek mine and as such contains comparable laminated, breccia and conglomeratic iron mineralisation.

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  • A COMPARISON OF ESTIMATION METHODS FOR …

    CGT Conglomeratic Ore CoV Coefficient of Variation EDA Exploratory Data Analysis FE Iron (elemental) HEM Hematite KIO Kumba Iron Ore KV Kriging Variance OK Ordinary Kriging OCK Ordinary Cokriging QKNA Quantitative Kriging Neighbourhood Analysis RC …

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  • Kumba Iron Ore Reserves and mineral resources 2011 ...

    Highgrade Haematite iron ore (laminated, massive, conglomeratic and breccia types – Figure 9) is found in the upper parts of a Lake Superiortype, banded iron formation succession of the Griqualand West Supergroup; the Transvaal Supergroup as it is known where it occurs in the Northern Cape.

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  • Ore Geology Reviews

    The deposits consist of competent, massive ore, laminated ore and conglomeratic ore and the bulk of mineralisation comprises granular and microplaty hematite with specularite veining. Commercial production commenced in 2011 and the operation has an estimated mine life of at least 29years.

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  • New developments on mine planning and grade control at ...

    Sishen Iron Ore Mine is situated 280 km northwest of Kimberley in the Northern Cape Province of South Africa. The mine produces and sells high quality iron ore of various specifications to various national and international clients. The saleable product is derived from the blending and beneficiation of different types and qualities of hematite ...

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  • The Geology and Genesis of HighGrade Hematite Iron Ore ...

    Iron Ore Conference Perth, WA, 9 11 September 2002 23 1. Department of Geology, Rand Afrikaans University, PO Box 524, ... overlain by reworked conglomeratic iron ores and highly

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  • A geological comparison of the Sishen and Sishen South ...

    Jul 18, 2013· At both deposits, four similar iron ore occurrences have been recognised. The ores have developed in specific depositional environments and hence display unique physical, chemical and metallurgical properties. First, the bulk of the highgrade hematite comprises laminated and massive ores, which are found in the upper parts of the Asbestos ...

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  • :: Assore Annual Report 2010 : MINERAL RESOURCES AND RESERVES

    The Khumani Iron Ore Mine was commissioned in 2007 and is ramping up to approximately 10 million tons per annum, with expansion plans to 16 million tons per annum being investigated. Mining authorisation – The Beeshoek mining lease (ML3/93) comprises an area of 5 686 hectares and is located on the farms Beeshoek (448) and Olynfontein (475).

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  • PorterGeo Database Ore Deposit Description

    Clastogenic chertyiron formation (conglomeratic ore) is also present, having been distributed in depressions in a palaeosurface at some distance from the main orebodies. They consist of 1 3 cm diameter clasts of rich ores of various types, and less frequently slates and quartz in a matrix of sandclay which has been unevenly carbonatised ...

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