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Applications of Fine Screens in Grinding Circuits
By J E. Wheeler, S B. Valine, L G. Albuquerque
It has long been known that closed circuit grinding with a classifier improves grinding efficiency, reduces unit specific power consumption, and reduces over grinding. The classification device remove
Oct 29, 2012
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Storage and Time - A Paradigm for Aquifer Pressure Management Beneath Open Cut Mines
By S Yuen, T Rana, S Khan
Many open pit mines require dewatering or need aquifer depressurisation systems to manage mine water inflow and/or mine floor stability. In many instances these mining operations impact on regional gr
Jan 1, 2009
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Gold Dredging Practice in New Zealand û Past and Present
This paper is in two parts. The first covers the evolution of dredging leading to the development of the æNZ typeÆ large dredge and the second, current alluvial gold recovery practice in NZ. NZ was t
Jan 1, 1985
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A Three-Dimensional Section Through the Otago Schist, New Zealand
By D Craw
Formation of gold-bearing veins in Otago Schist was intimately linked to the structural evolution of the schist belt. The currently-exploited Macraes gold deposit formed in a regional scale shear zone
Jan 1, 2001
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Refining Metals with Sulphur (b5b5ef1f-2600-4f80-b653-f1fb872f28fb)
Recent work on decoppering lead is reviewed CUS is formed rapidly even from dilute solutions of copper in lead. The mechanism of decoppering is discussed and an explanation for the retention of metals
Jan 1, 1971
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The Blue Asbestos Deposits of the Hamersley Ranges (19c1a807-8e29-4e48-b49c-0186628feb0e)
Crocidolite deposits in the Hamersley Ranges, NW. of Western Australia, occur over a length of 180 miles and a width of 20' to 30 miles. Their stratigraphic environment and mineralogy is comparab
Jan 1, 1964
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Using existing data to improve the delineation of ore at the Olympic Dam Fe-oxide Cu-U-Au-Ag deposit
By K Ehrig, J Griffith
An extensive suite of elements are routinely assayed on all resource drill core samples to assist in deposit scale resource definition, local mine scale delineation of ore zones, and ore characterisat
Sep 20, 2017
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Dirty goethite – a geochemical characterisation of some western Robe River channel iron deposits
By C Placzek, E Beattie, K Blake
Channel iron deposits (CID) consist of ferruginous chemical sediments, and are an unusual subset of Phanerozoic ooidal ironstone deposits almost unique to the Pilbara, where they constitute around 19
Jul 24, 2017
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The Barmac Autogenous Crushing Mill - The New Development in Autogenous Crushing and Milling
The Barmac autogenous crushing mill is one of the most successful new comminution technologies to become available to the mining and industrial minerals industries in this decade. The Barmac au
Jan 1, 1990
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Design of Reinforced Concrete Chimney at Yallourn Briquetting Works
THE Yallourn chimney has aroused interest, as it is, for the time being, the tallest structural erection in Australia. Its height was not decided on, however, with the object of breaking records, but
Jan 1, 1924
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Hexagon Sets
TIMBER supports for large underground cavities are temporary expedients until the permanent filling can be put in. Nevertheless, timber supports are very necessary in some form. The general problem is
Jan 1, 1912
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Post-Mine Leaching of Galena and Marmatite at Broken Hill
By Blanchard R
In stopes of the 2000- and 2150-ft. levels in the North mine section of North Broken Hill Limited, whence a substantial proportion of the company's production is being drawn, and especially in st
Jan 1, 1942
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The Breakdown of Shales in Water
By Whitmore R. L
The action of water on a number of Queensland shales which are associated with particular coal measures and oil shales has been studied. The results suggest that the disintegration of some of the shal
Jan 1, 1982
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High Resolution Seismic Reflection and its Implications for Mine Risk Management: a Case Study from the Huntly Coalfield, New Zealand
Geological hazards such as faulting, basement ridges, and zones of "thin" (< 6 m) coal have a major impact on mining economics of underground operations in Huntly Coalfield. Experience has shown th
Jan 1, 1997
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The Concentration of Ore from the Read-Rosebery Mines of Electrolytic Zinc Company of Australasia Limited
DESCRIPTION OF OREThe ore consists, in general, of a very finely grained mixture of sphalerite, galena, and pyrite, with a gangue of quartz and schistose material, and contains about one ounce of silv
Jan 1, 1927
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Distant Fields - Are They Really Greener?
The Australian mining industry is at an interesting stage in its development. Of the large number of mining companies in Australia, some are still solely domestic in their focus, others have made thei
Jan 1, 1995
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Reflections on Gold Occurence at Bendigo
Cessation of mining on the Bendigo goldfield makes it evident that, as the older generation fades away, knowledge of the famous Bendigo saddle reefs will be limited in the future by their written reco
Jan 1, 1961
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The influence of ferrosilicon properties on dense medium seperation plant consumption
By Davy A. T, Hansen J. O
The causes of ferrosilicon loss from Dense Media Separation (DMS) plants, and the related properties of ferrosilicon, are identified. Two characteristics, corrosion resistance and saturation magnetisa
Jan 1, 1986
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Improvement of sinter productivity by control of magnetite ore segregation in sintering bed
By H Matsuno, N Oyama, T Yamamoto, K Nakajima, Y Iwami, N Saito
Recently, the quality of sinter feed ore used in sintering process has deteriorated. In particular, Fe has decreased and gangue component has increased in the sinter feed ore. Increase of gangue is no
Jul 24, 2017
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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