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A Case Study on Mine Subsidence Due to Multi-Seam Longwall Extraction
The case study has identified and characterised additional subsidence arising from longwall mining above or under existing longwall goaf. It suggests that the magnitude, mechanisms and prediction meth
Nov 25, 2010
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The Effect of Flocculants on the De-Watering Time of a Clay Suspension
By Sparrow G. J
The effect of polyelectrolyte flocculants on the de-watering of a tailing suspension of very fine clay was investigated.Sedimentation and filtration experiments were carried out in the labqratory to c
Jan 1, 1980
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The Role of Precrusher Stockpiling for Grade Control in Mining
By J E. Everett, K Jupp, T J. Howard
Precrusher stockpiles are designed principally as buffers to decouple the mining and processing operations. They are usually paddock dumped or dumped over a face to form fingers by dumping haul truckl
Aug 12, 2013
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Surveying the 1,480 Ft Level Drive, Broken Hill South Limited, Broken Hill
The 8 ft by 91/2 ft drive which joined No. 7 Shaft with Browne Shaft on the 1,480 ft level was extended from both ends and met at a point approximately 12,000 ft from No. 7 (2,000 ft from Browne).The
Jan 1, 1965
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Pelletising Characteristics of the Magnetite Concentrate from Daye Iron Mine
By Xu Z, Hu C
An attempt has been made to investigate the performance of green pellet formation of the Daye magnetite concentrate from the weak-magnetic separation plant. The optimum conditions for the commercial
Jan 1, 1999
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Managing Challenges Faced in the Brownfield Commissioning of an Ultra-Fine Hematite Processing Circuit at ArriumÆs Iron Duke Ore Beneficiation Plant
By E Selvapandian, R Barr
Arrium (previously OneSteel) initiated a desktop study into the performance of its hematite ore beneficiation plant in early 2010. The beneficiation plant utilises jig concentrators and spirals to upg
Aug 12, 2013
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Jasper Bars and Economic Geology in Western Australia
In a previous paper the writer dealt -with the jasper bar formations and their relationship to the structural geology of older pre-Cambrian rocks in the goldfields districts of Western Australia (24).
Jan 1, 1943
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Heat Transfer Mechanism in Ignition of Nickel Sulphide Concentrate under Simulated Flash Smelting Conditions
For small particles of niekel flotation eoncentrate (av. size 50 pm) the predominant heat transfer mechanism under suspension smelting conditions, prior to ignition, is conduction from the gas and not
Jan 1, 1979
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Proper Tyre Management Reduces Tyre Costs (8cc3f990-94b6-4b55-8abb-8c65d8f8d45b)
By Gordon DM
Tyres account for 25-30 per cent of the operating costs of large capacity haul units as used in open-cut mines.Tyre operating costs can be substantially reduced and often contained in real terms by ap
Jan 1, 1983
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The Products of Boiling Hydrothermal Fluids in the Golden Cross Epithermal Deposit
By M P. Simpson, J L. Mauk
The Golden Cross, low-sulfidation, epithermal deposit shows a number of features that are directly or indirectly related to boiling hydrothermal fluids. Occurrences of lattice calcite and their quartz
Jan 1, 2000
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Costing Techniques in the Mining Industry
Many mining operations are uncertain of what costs they should be achieving. The majority of cost estimates are based on historical costs that have added contingency factors. Historical costs are a
Jan 1, 1990
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Why Accounting for Uncertainty and Risk can Improve Final Decision-Making in Strategic Open Pit Mine Evaluation
The objectives of this paper are two-fold. First, it will show what problems can arise when single estimated values are substituted for a distribution of values when evaluating an open pit mine projec
Jan 1, 2009
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Hidden Valley gold project development summary, 1987-1991
This paper summarises the development t,) date for the Hidden Valley Gold (HVG) Project. It starts with the original exploration work, covers the detailed feasibility study activities and conclude
Jan 1, 1991
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The Dissolution of Gold in Cyanide Solutions-An Electrochemical Study
By Koch D. F A
An electrochemical study of the dissolution of gold in aerated cyanide solution shows that the dissolution rate is determined by the nature of the surface. A passive film (probably a basic cyanide) fo
Jan 1, 1964
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Surface-Area Measurement of Chalcopyrite Concentrates by Methylene Blue Dye Adsorption from Aqueous Solution
By Tyler R. J
Methylene blue dye adsorbs on chalcopyrite concentrates slurried in aqueous solution. Saturation adsorption can be achieved within about 24 hours for dye equilibrium concentrations greater than about
Jan 1, 1979
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Electricity and the Environment
Electricity will play a major part in providing energy services in the 21st century. Ecologically Sustainable Development (ESD), that is accommodating the needs of the present without compromising t
Jan 1, 1992
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No Net Loss and Offsite Mitigation: Is New Zealand Mature Enough for a Win-Win Situation?
By S Christensen
In August 2001 the Minister for Conservation declined an application by GRD Macraes for an access arrangement to enable work at the Globe Progress Mine near Reefton. In her decision, Ms Lee said:æI ha
Jan 1, 2002
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Presidential Address (f9446de2-f07b-4880-8e2a-dc5f91667a36)
Mr. BRADFORD said :-On assuming this chair, which has been occupied by so many gentlemen of conspicuous ability; my first words must be an expression of the gratitude I feel for the honour you have do
Jan 1, 1926
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Mesothermal Gold Deposits of Westland, New Zealand and Southern Alaska: Products of Similar Tectonic Processes?
By D Skinner, P Haeussler, D Bradley, A Christie
Mesothermal gold deposits of southernAlaska and Westland, New Zealand have both formed at the seaward edge of major collisional zones in the Pacific basin. In Alaska, production of large fluid volumes
Jan 1, 1995
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Precipitation of Gold and Silver in Cyanide Solutions by Carbon
THIS paper is the outcome of experiments carried on and experience gained. at the Waihi-Paeroa Gold Extraction Company's tailings plant at Waihi, New Zealand. The plant was erected to treat accum
Jan 1, 1912