an evaluation of small scale open cast mining of ug2 in the

an evaluation of small scale open cast mining of ug2 in the

  • Humphries 129136 Metals Conferences

    Limited, openpit mining of sub outcrops of the UG2 and. Merensky reefs is practised in the programme has been conducted evaluating the best process flow sheet for the very hard and variable ore in the conducted over several years and has involved work done at site at pilot scale, internally at the company's research 

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  • OPENCAST PLATINUM MINE PROJECT Miningreview

    Sep 29, 2008 Concor Mining began work on the Impala opencast mining project in 2002 in the vicinity of Impala No. 6 shaft. "We mined the Merenksy ore body first and in 2005 we started mining the UG2 orebody," Rodger Herne, Concor Mining contracts director responsible for this project says. "In a two shift operation, 

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  • Ore Reserves and Mineral Resources Report 2016 Anglo American

    Mining method: OP = Open Pit, UG = Underground. LOM = Life of Mine (years) is based on scheduled Probable Reserves including some Inferred Resources considered for Life of Mine planning. Reported Diamond Reserves/Resources are based on a Bottom CutOff (BCO) which refers to the bottom screen size aperture 

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  • Doornbosch Randgold & Exploration

    The business of mining and mineral exploration, development and production by their nature contain significant Both the Doornbosch and Kameelhoek properties are small in size and will likely be uneconomical . sight of the Project and a significant open cast operation will be mounted close to its southern boundary.

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  • Tharisa Chrome and PGM Mine, South Africa Competent Persons

    The Tharisa Mine started trial mining in October 2008 and commenced production of ore on a small . of open pit mining. The programme for the deeper boreholes on the Rooikoppies property, where. Lonmin is mining the Merensky Reef and UG2 Chromitite Layer, was revised . A block size of 100m x 100m was selected.

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  • Independence Platinum Limited (IPt)—formation and Mintek

    In the past decade, all of the platinum producers have begun to mine the UG2 reef because of its cheaper mining costs. UG2 ore usually . development of underground and opencast mines and associated platinum concentrators. Major platinum scale for small operations. Moreover, it will be difficult, if not impossible, 

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  • Openpit mining Wikipedia

    Openpit, opencast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow. This form of mining differs from extractive methods that require tunneling into the earth, such as long wall mining. Openpit mines are used when deposits of 

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  • 2014 Lonmin

    Rooiberg. Steelpoort. Mokopane. 50km. 0. Scale. Akanani. Limpopo. Loskop. Marikana. Pandora. Mineral Resource and Mineral Reserves Statement, 2014. + + .. 740,000 tonnes of UG2 Reef per month. Opencast Merensky produces approximately 48,000 tonnes per month. The predominant mining method employed by 

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  • openpit mining African Rainbow Minerals

    Aug 27, 2007 Reserves are tonnages falling within an economic pitshell. The evaluation method is generally Ordinary. Kriging with mining block sizes ranging from. 10 x 10m to 100 x 100m to In 1940, ARM Ferrous acquired a manganese ore outcrop on a small hillock known as Black Rock. Several large properties 

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  • An assessment of the economic viability of mining the UG2 Reef

    observation was prevalent during the geological structural evaluation of the two reef horizons in the No. Portions of the UG2 orebody displaying an even smaller grain size of PGM's than the average of the entire in the Mining Industry,. 4th Proceedings Large Open Pit Mining Conference (The Australasian Institute of.

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  • Openpit mining Wikipedia

    Openpit, opencast or open cut mining is a surface mining technique of extracting rock or minerals from the earth by their removal from an open pit or borrow. This form of mining differs from extractive methods that require tunneling into the earth, such as long wall mining. Openpit mines are used when deposits of 

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  • A Technical Report on the Smokey Hills Platinum Mine, Limpopo

    Apr 13, 2016 at steady state, it is recommended that advanced control be trialled at Smokey Hills to evaluate its Excavation of a small open pit to expose a 10 m dip section of the UG2 reef to study the effects of .. Rolling reef and small scale undulations of the UG2 do not create geological losses but can contribute.

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  • Mineral profile British Geological Survey

    layered chromitite, pyroxenite, norite and anorthosite on a scale of centimetres to tens of metres. Platinum is currently mined from three horizons in the. Bushveld Complex: the Merensky Reef, the UG2 Reef, and the. Platreef. The Merensky and the UG2 are extensively worked by both open pit and underground mining 

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  • Preliminary evaluation of the proposed mining method at SAIMM

    The open pit is exploiting the UG2 reef at a depth of between 45 m and Preliminary evaluation of the proposed mining method at. Eland Platinum Mine. G.S. POTGIETER* and D.F. MALAN†. *Xstrata Alloys, Eland Platinum Mine. †Mining The only practical method to solve tabular layouts on a minewide scale is to use a 

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  • ANGLO AMERICAN PLATINUM Precious Metals Supply

    Platinum Group Metals (PGMs) are recovered through both underground and open pit mining from polymetallic sulphide ores and Osmium (Os) found in much smaller quantities but mined concurrently The UG2 Reef, a chromiterich reef, is more consistent, but lacks Merensky's high yield of Gold, Copper and Nickel.

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  • An assessment of the economic viability of mining the UG2 Reef

    observation was prevalent during the geological structural evaluation of the two reef horizons in the No. Portions of the UG2 orebody displaying an even smaller grain size of PGM's than the average of the entire in the Mining Industry,. 4th Proceedings Large Open Pit Mining Conference (The Australasian Institute of.

    >>Details
  • Mining Research Wits University

    Investigation of coal damage during blasting in open cast mining. Identifiion of inelastic deformation mechanisms around deep level mining stopes and their appliion to improvement in mining. An integrated environmental impact assessment of mining in the Zambian Copperbelt. Appliion of risk analysis. A mineral 

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  • Use of joint trace data to evaluate stability of mining WIReDSpace

    Figure 47: UG2 reef small rockfall keyblock distribution. 55. Figure 48: Merensky reef .. addition to these properties, joint shape and size is also important for a three dimensional description of joints. .. Slope instability of open pit mines cut in discontinuous rock masses is primarily controlled by geological structures such 

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  • The Environmental Costs of PlatinumPGM Mining User Web Pages

    intrusions, such as the Merensky and Upper Group 2 Chromitite (UG2) Reefs of the Bushveld. Complex in South The mining of PGM ores is through conventional underground or open cut mines. The next stage .. to be outliers are Northam – one of the deepest mines (~2 km) and is a smaller scale, stand alone project.

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  • Mineral profile British Geological Survey

    layered chromitite, pyroxenite, norite and anorthosite on a scale of centimetres to tens of metres. Platinum is currently mined from three horizons in the. Bushveld Complex: the Merensky Reef, the UG2 Reef, and the. Platreef. The Merensky and the UG2 are extensively worked by both open pit and underground mining 

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  • PGM Ore Processing at Impala's UG2 Concentrator

    operated by a small number of South. Africanbased companies, several new companies have opened platinum mines in recent years, including South Africanbased "BlackEmpowerment" companies, as well as junior mining companies based in Australia, Canada and the United Kingdom. Impala Platinum Limited is the 

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  • Changes to Argyle Diamonds Ore Reserves and Mineral Rio Tinto

    Mar 2, 2018 Mining transitioned from open pit operations to underground operations in 2013. Mineral Resource and Ore Reserve Estimates for Argyle Diamonds are supported by the information set out in small scale sample treatment plant, and caustic fusion of microdiamond samples from the smaller diameter drill.

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  • Mining Research Wits University

    Investigation of coal damage during blasting in open cast mining. Identifiion of inelastic deformation mechanisms around deep level mining stopes and their appliion to improvement in mining. An integrated environmental impact assessment of mining in the Zambian Copperbelt. Appliion of risk analysis. A mineral 

    >>Details
  • Use of joint trace data to evaluate stability of mining WIReDSpace

    Figure 47: UG2 reef small rockfall keyblock distribution. 55. Figure 48: Merensky reef .. addition to these properties, joint shape and size is also important for a three dimensional description of joints. .. Slope instability of open pit mines cut in discontinuous rock masses is primarily controlled by geological structures such 

    >>Details
  • openpit mining African Rainbow Minerals

    Aug 27, 2007 Reserves are tonnages falling within an economic pitshell. The evaluation method is generally Ordinary. Kriging with mining block sizes ranging from. 10 x 10m to 100 x 100m to In 1940, ARM Ferrous acquired a manganese ore outcrop on a small hillock known as Black Rock. Several large properties 

    >>Details
  • INTEGRATED MINING, PRECONCENTRATION Open Collections

    composite fill systems, and continuous mechanized mining methods are discussed. The impacts and benefits of integrating these technologies are defined and quantified through research, testwork, systems design and analysis. Custom geometallurgical evaluation tools incorporating mineralogical, metallurgical and 

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  • Preconcentration of UG2 platinum ore: economic benefits

    The process itself is straightforward and is accommodated by a relatively small plant footprint. Of the commercially exploited platinum reefs mined in South Africa, the UG2 chromitite reef has a much higher density than the silie waste fraction in both the hangingwall and footwall, and this difference is used to separate the 

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  • financial evaluation of the ug2 and merensky reef on twickenham

    Jun 22, 2011 Exploration for the MR and UG2 on the Eastern Limb date back to the 1960's, and was mainly conducted through trenching along the outcrop and small scale mining from adits on the hills. There were limited diamond drill holes, but as the interest in PGM mounted, more extensive diamond drilling programs 

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