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High Grade Metamorphic Structures in the Broken Hill Orebody
The Broken Hill orebody ,occurs in the Willyama Complex, a block of Precambrian rocks which have been strongly folded and metamorphosed at moderate to high grade. Although -the origin of the silver-le
Jan 1, 1975
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The Geology and Mineralization of the MitchellÆs Creek or Bodangora Gold Mine, Central Western New South Wales
The main orebody of the Bodangora mine is a metalliferous quartz reef within a major fault plane in the strongly folded and faulted volcanic rocks of the Ordovician-Silurian Oakdale Formation. The sim
Jan 1, 1970
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Pre-concentration via waste rejection based on fragment size – Olympic Dam case study
By K Ehrig, V Liebezeit, Y Li, B Pewkliang, M Smith, E Macmillan
Pre-concentration of low grade ores via the rejection of low/no value materials based on fragment size is the subject of many published papers and studies over the past decade. However, the possibilit
Nov 10, 2020
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The Useful Minerals of Tasmania
The distribution or the userul minerals or Tasmania is so closely connected with the geological structure of the island that it will be convenient to briefly recapitulate the principal ract or its geo
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A Dynamic Investigation of Continuous Grinding in a Small Wet Ball Mill
By Reid K. J, Restarick C. J
The breakage and flow characteristics of quartz, ground as a minor constituent with calcite in a continuous wet ball mill, have been determined by carefully controlled grinding tests.A mathematical mo
Jan 1, 1966
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Fluid-Mineral Relations in the Comstock Lode, Storey, Washoe, and Lyon Counties, Nevada, U.S.A.
The Comstock Lode, a world-class precious metal vein district near Virginia City in western Nevada, U.S.A. (Fig. 1), produced 8.3 million ounces (0.28 X 106 kg) of gold and 193 million ounces (6.5
Jan 1, 1987
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The Influence of Mining on Sediment Geochemistry of the Waitekauri Catchment, Waihi, New Zealand
By J G. Webster-Brown, K L. Brown
The Waihi Region is host to many low sulphidation epithermal Au-Ag deposits. The Golden Cross mine located at the head of the Waitekauri River, eight kilometres NW of Waihi, was a gold mining operatio
Jan 1, 2003
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Remediation Strategies for Acid Mine Drainage at Sullivan Mine, West Coast, New Zealand
By K Gordon, A Black
Two remediation strategies have been considered to reduce the levels of acidity and dissolved metals in acid mine drainage discharging from Sullivan Mine, West Coast, New Zealand. The oxidising strate
Jan 1, 2003
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Characterisation of Ore Crushability Using Petrophysical Properties
By P Fullagar
Automated multi-sensor core loggers (MSCL) measure petrophysical properties of diamond drill cores, including gamma density, P-wave velocity, electrical conductivity and magnetic susceptibility. A Geo
Jan 1, 2009
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Developing a Training Strategy for Quality, Safe and Productive Extracting Operations
The extractive industry has been faced with a situation where there has been no systematic and formalised training and education structure available. Previous structures which were available, e.g. the
Jan 1, 1997
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The Gold-Antimony Veins of Costerfield, Victoria
THE township of Costerfield is situated in the parish of Costerfield, county of Dalhousie, and lies 6 miles east of Heathcote and 30 miles south-east of Bendigo. It is separated from Heathcote by the
Jan 1, 1922
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The Application of Sodium Peroxide Sintering Techniques to the Analysis of Minerals and Rocks by Atomic Absorption Spectroscopy
Techniques have been developed for the dissolution of a wide range of rocks and minerals by a sodium peroxide sinter process. A olarge number of elements are determined by atomic absorption spectrosco
Jan 1, 1974
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Auxiliary ventilation design – why and how mines waste so much power on inferior systems
By D J. Brake
There has been a strong trend over the past decade in hard rock mines towards the use of very high powered auxiliary (or secondary) fans; in many mines, the installed power for the secondary ventilati
Aug 28, 2017
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The Rosia Montana Gold Deposit, Rosia Montana, Transylvania, Romania
By C S. Szentesy, K Howie
The Rosia Montana gold deposit is located within the æGolden QuadrilateralÆ area in the Apuseni Mountains of Transylvania, Romania. The deposit is situated approximately 85 kilometres north of the reg
Jan 1, 2002
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New generation of gas sensors for underground coal mining applications
By M Amanzadeh, S M. Aminossadati, B M. Masum, M S. Kizil, C R. Leonardi
Gas sensing systems are becoming more important in many industries such as oil, gas and mining operations. Particularly in underground coalmines, accurate and reliable monitoring of toxic and combusti
Aug 28, 2017
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The Mineralogy and Paragenesis of the Crocidolite Veins at Wittenoom Gorge, W.A.
Several factors contributing to the loss of fibre during treatment are a function of the paragenesis of the veins. The occurrence, of magnetite from the cap rock within the veins prevents complete fib
Jan 1, 1963
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Application of Research Principles to Identify Process Improvement at Sunrise Dam Gold Mine
By N Clarke, G R. Ballantyne, M S. Powell, P Elms, A Anyimadu
AngloGold Ashanti Ltd nominated Sunrise Dam Gold Mine as a case study via their involvement with the long-running Australian Mineral Industry Research Association (AMIRA) International P9P research pr
Sep 7, 2015
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Rapid Colorimetric Procedures in Geochemical Prospecting for Molybdenum
Procedures employing thiocyanate and dithiol complexes of molybdenum have been developed for the determination of the metal in the presence of large quantities of ferric iron. The procedures are devel
Jan 1, 1965
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Frictional Ignitions
ignitions caused by cutting tools have occurred at a rate of some 14 per year in UK coal mines since 1965, mostly on the coalface. The rate has held steady despite reducing output and number of co
Jan 1, 1988
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The Effect of Interrupted Irrigation on Copper Release and Bacterial Activity During Leaching of Chalcopyrite Ore
By Peddie F, Low K, Madgwick J, Rajoka M. I, Gutierrez N, Lim C
Percolation irrigation of low-grade quartz feldspar porphyry ore with pH 2.0 H2SO4 at 510 litres/m2/day using particle sizes 1.7 - 6.7 mm in columns measuring 5 cm dia × 126 cm long was used to s
Jan 1, 1981