Conglomeratic Iron Ore

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 ...

The autosem ore characterisation of conglomeratic and ...

Jun 01, 2014· The understanding of lower grade iron ore mineralogy and the subsequent characterisation of lower grade iron ore will allow for the efficient processing of the ores and the optimisation of downstream smelting. 2. Methodology 2.1. Sample preparation. The initial low grade ore samples were cut into rock slabs of 9 cm by 4 cm.

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

The thicker iron ore beds occur towards the top of the formation immediately below the pre-Gamagara unconformity and can be up to 5 m thick. Both laminated and massive ores are developed. Above the unconformity, poorly sorted hematitic conglomeratic to arenitic ores are developed as localized facies of the laterally extensive basal Doornfontein ...

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

Dec 27, 2014· The deposit consists of four varieties of high-grade haematite ores, namely clastic-textured (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 64.4% Fe as of 31 December 2013.

Quantitative analysis of iron ore using SEM-based ...

Jan 01, 2015· The quantitative analysis of iron ore using SEM-based technologies is becoming an increasingly valuable and critical tool in the characterization of iron ores with over 200 automated instruments worldwide being put to this end in various research institutions. ... Example of a clast size distribution histogram for a conglomeratic ore. Download ...

Geology, Mineralogy and Geochemistry of the Oligocene ...

The Oligocene Continental Terminal Formation of the Kandi Basin contains high grades of iron mineralization (~56.72% Total Fe). The microscopic study under the polarized and reflected light showed that the iron ore consists of silicate minerals (quartz 50% and zircon 1%) and non-silicate minerals (goethite 30%, hematite 7%, magnetite 3%, pyrite 1%, chalcopyrite 1%, blende 3%, galena 3% ...

Major Mines & Projects | Khumani Mine

The iron ore deposits are formed within in a sequence of early Proterozoic sediments of the Transvaal Supergroup deposited between 2 500 and 2 200 million years ago. In general, two ore types are present, namely laminated hematite ore forming part of the Manganore Iron Formation and conglomerate ore belonging to the Doornfontein Conglomerate ...

NOTES ON THE GEOLOGY AND IRON ORES OF THE …

also. Those that occur in the neighborhood of the iron-bearing areas are usually highly ferruginous and in places consist of conglomeratic iron ore. The pre-Cambrian metamorphosed and intrusive rocks which un­ derlie the sedimentary beds and glacial deposits throughout the State

Major Mines & Projects | Beeshoek Mine

The iron ore deposits are formed within in a sequence of early Proterozoic sediments of the Transvaal Supergroup deposited between 2 500 and 2 200 million years ago. In general, two ore types are present, namely laminated hematite ore forming part of the Manganore Iron Formation and conglomerate ore belonging to the Doornfontein Conglomerate ...

(PDF) The geology and genesis of high grade hematite ore ...

Conglomeratic orebodies in the lower part of the Gamagara. ... Iron ore deposits hosted by Precambrian banded iron formation (BIF) are the most important source of mineable iron…

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

Dec 27, 2014· The deposit consists of four varieties of high-grade haematite ores, namely clastic-textured (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 64.4% Fe as of 31 December 2013.

Geology, Mineralogy and Geochemistry of the Oligocene ...

The Oligocene Continental Terminal Formation of the Kandi Basin contains high grades of iron mineralization (~56.72% Total Fe). The microscopic study under the polarized and reflected light showed that the iron ore consists of silicate minerals (quartz 50% and zircon 1%) and non-silicate minerals (goethite 30%, hematite 7%, magnetite 3%, pyrite 1%, chalcopyrite 1%, blende 3%, galena 3% ...

The structural/stratigraphic development of the Sishen ...

Jul 18, 2013· The undeveloped Sishen South deposit, which contains ∼400 Mt of high-grade 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.

Iron Ore Deposits of Eastern India (With Map) | Metals ...

Introduction to Iron Ore Deposits 2. Overview of the Iron Ore Group 3. Iron Ores of the Singhbhum Era. Introduction to Iron Ore Deposits: Rich iron ore deposits of high grade where the iron percentage is more than 60 per cent, eastern India account for more than half of the total current annual production of more than 180 million metric tonnes ...

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 pro-duction commenced in 2011 and the operation has an estimated mine life of at least 29years.

PorterGeo Database - Ore Deposit Description

Clastogenic cherty-iron formation (conglomeratic ore) is also present, having been distributed in depressions in a palaeo-surface 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 sand-clay which has been unevenly carbonatised ...

Iron ores of the Hotazel Formation, Northern Cape …

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 medium-grained, compact, randomly orientated hematite aggregates, whereas the massive ore

KUMBA IRON ORE : Mines and projects

Medium- and lower-grade iron ore zones, comprising conglomeratic and brecciated ore, are preserved within deep palaeosinkhole structures on the southern portions of the deposit, where these structures are the result of karstification of the underlying dolomites during periods of uplift and erosion.

The lateritic ore deposits of Brazil - MAFIADOC.COM

The Carajas iron ore deposit, which is one of the largest iron reserves of the world, occurs associated with these rocks . . Finally, the Archean rocks include the manganiferous rocks ofSerra do Navio (Amapa), which form the most important manganese ore deposit being exploited in Brazil.

Lauren Gericke - Rhodes University

May 15, 2015· Mineralogy, geochemistry and origin of conglomeratic iron ore at farm Langerwacht, Northern Cape Province, South Africa, with emphasis on anomalous enrichments in Mn, Na and Ba. Contact details E-mail: [email protected] . Last Modified: …

Mineral resources and reserves report | Assore

Khumani Mine supplies iron ore to the export markets. Exports are railed to the iron ore terminal at Saldanha Bay. Beeshoek ore is mainly supplied to local customers, with some exported via Khumani. History. Mining of iron ore (mainly specularite) was undertaken as early as 40 000 BC on the farm Doornfontein which is due north of Beeshoek.

James Bursey - ru.ac.za

A mineralogical, geochemical, and metallogenic study of unusual Mn/ Na/ Ba assemblages at the footwall of conglomeratic iron-ore at farm Langverwacht, Northern Cape Province, South Africa. Contact Details. E-mail: [email protected]; [email protected] Cell: 076 617 7658

A Geological Comparison of the Sishen and Sishen South ...

The Palaeo-Proterozoic Transvaal Supergroup in the Northern Cape Province of South Africa is host to the largest known resources of high-grade hematite ore on the Southern African continent. These ores are currently being exploited at Sishen and Beeshoek. Hematite occurances on the Sishen South exploration project (some 65 km south of Sishen mine), are at...

Conglomerate: Mineral information, data and localities.

A gravel-grade clastic-sedimentary-rock. A coarse-grained clastic sedimentary rock, composed of rounded to subangular fragments larger than 2 mm in diameter (granules, pebbles, cobbles, boulders) set in a fine-grained matrix of sand or silt, and commonly cemented by calcium carbonate, iron oxide, silica, or hardened clay; the consolidated equivalent of gravel.

Iron ores of the Hotazel Formation, Northern Cape …

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 medium-grained, compact, randomly orientated hematite aggregates, whereas the massive ore

KUMBA IRON ORE : Mines and projects

Medium- and lower-grade iron ore zones, comprising conglomeratic and brecciated ore, are preserved within deep palaeosinkhole structures on the southern portions of the deposit, where these structures are the result of karstification of the underlying dolomites during periods of uplift and erosion.

James Bursey - ru.ac.za

A mineralogical, geochemical, and metallogenic study of unusual Mn/ Na/ Ba assemblages at the footwall of conglomeratic iron-ore at farm Langverwacht, Northern Cape Province, South Africa. Contact Details. E-mail: [email protected]; [email protected] Cell: 076 617 7658

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 …

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 pro-duction commenced in 2011 and the operation has an estimated mine life of at least 29years.

THE USE OF REMOTE SENSING IN IRON ORE …

Subgroup. Collapse breccia ore (brecciated laminated ore) is preserved within deep sinkhole structures and conglomeratic ore is preserved as lensoid channel and slope sediments (Gamagara clastics), which fill the grabens and synclines above the erosional unconformity. Very little outcrop of hematite ore s present and i calcrete cover prevails ...

Lauren Gericke - Rhodes University

May 15, 2015· Mineralogy, geochemistry and origin of conglomeratic iron ore at farm Langerwacht, Northern Cape Province, South Africa, with emphasis on anomalous enrichments in Mn, Na and Ba. Contact details E-mail: [email protected] . Last Modified: …

New developments on mine planning and grade control …

Sishen Iron Ore Mine is situated 280 km north-west 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 ...

Disintegration of Northern Cape iron ores under …

in the open pores of the massive ore particle. Type 5 This is a conglomeratic ore containing angular to subangular ore fragments consisting of specular hema-tite set in an aluminous matrix. The matrix consists of extremely nely crystalline alumino-silicate groundmass containing euhedral phosphates with lesser quartz and specular hematite.

Pilbara's gold rush: a complete guide to the main players

Oct 16, 2017· There is enough iron ore to supply the whole world.’’ He turned out to be spot on but it was Lang Hancock and his royalty deal with Rio Tinto to develop Hope Downs that really established the Pilbara as a major iron ore province that would supply the world with ore for potentially hundreds of years. Large open cut iron ore mine in the ...

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

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

Nonpetroleum Minerals | Texas Almanac

Iron oxide, also a constituent of cement, is available from the iron ore deposits of East Texas and from smelter slag. Gypsum, added to the cement as a retarder, is found chiefly in North Central Texas, ... In Northeast Texas, sedimentary rock phosphate occurs in thin conglomeratic lenses in Upper Cretaceous and Tertiary rock units; ...

Mineral resources and reserves report | Assore

Khumani Mine supplies iron ore to the export markets. Exports are railed to the iron ore terminal at Saldanha Bay. Beeshoek ore is mainly supplied to local customers, with some exported via Khumani. History. Mining of iron ore (mainly specularite) was undertaken as early as 40 000 BC on the farm Doornfontein which is due north of Beeshoek.

The lateritic ore deposits of Brazil - MAFIADOC.COM

The Carajas iron ore deposit, which is one of the largest iron reserves of the world, occurs associated with these rocks . . Finally, the Archean rocks include the manganiferous rocks ofSerra do Navio (Amapa), which form the most important manganese ore deposit being exploited in Brazil.

Location

CONTACT INFO