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The Barewood-Hindon Vein System: A Regionally Extensive Normal Fault-Hosted Gold Deposit in the Otago Schist
By D Craw, J Youngson
Recent exploration for mesothermal gold deposits in the Otago Schist has focussed largely on extensions of, or analogies to, the reverse fault-hosted Hyde-Macraes Shear Zone deposit. Abundant normal f
Jan 1, 2002
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The Colorimetric Determination of Thorium in Soils, Sediments, and Rocks
Samples weighing 0·5 g are decomposed with hydrofluoric and other acids. Most elements are extracted ftom the acid, aqueous solution by Alamine 336 (tricaprylyl tertiary amine) and thorium is det
Jan 1, 1971
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æCleanfillingÆ ù A Valuable Means of Rehabilitating Quarries in Auckland
By A Hanna
Quarries around Auckland have reached or are reaching the ends of their lives, which raises issues about rehabilitation. Significant volumes of 'cleanfill' are generated by the City, particu
Jan 1, 2002
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Understanding Damage Source Mechanisms in a Caving System Using Virtual Reality Scientific Visualisation
By B K. Hebblewhite, F T. Suorineni, J D. Tibbett
Block caving is an underground mining method that can provide high production capacities at low operating costs. This enables the profitable extraction of massive, low-grade orebodies and attracts ind
May 9, 2016
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Flotation Energy Consumption and Opportunities for Improvement
By B Murphy
Traditionally comminution optimisation has been focused on energy minimisation, whereas flotation optimisation has been focused on recovery improvement. One of the largest, if not the largest, operati
Jul 15, 2013
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Avoiding Unnecessary Drilling
The extra information brought by further drilling may seem necessary to achieve control over block grades if elementary estimation techniques are used. However a geostatistical study of an Australian
Jan 1, 1975
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An OperatorsÆ Guide to Sulfide Mineral Flotation
The recent boom in the mining industry has lead to some unique challenges in successfully operating processing plants. With high turn-over rates of both operators and technical staff, and many experie
Jan 1, 2009
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Primary Magmatic Segregation Deposits in New Zealand, their Characteristics and Tectonic Setting
Mineral deposits in New Zealand whose origin can be ascribed to primary magmatic segregations are associated with mafic-ultramafic complexes related to two orogenic episodes which took place during Pa
Jan 1, 1980
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Verified Stability Modelling of Highwalls
By D Fergusson, J D. St George
Highwall stability is a major consideration in optimising opencast mine geometry. It involves assessing the risk of those slope failures that are large enough to have significant cost, safety and/or o
Jan 1, 2006
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Metal Manufactures Ltd.
The works of Metal Manufactures Ltd are situated at Port Kemblam NSW, within a few hundred yards of a deep-water harbour. At present they occupy about 26 acres, and ample provision has been made for f
Jan 1, 1938
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Some Technical Aspects of Treatment Operations at Mary Kathleen Uranium Ltd.
By Hemingway P, Boag J
Major operating aspects of the Mary Kathleen Uranium Ltd. treatment plant are discussed with partkular reference to those which are peculiar to this operation.Problems associated with the production o
Jan 1, 1961
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Flotation of Some Australian Uranium Ores
The flolation behaviour of some Australian uranium ores was investigated. Although uraninite and pitchblend float readily with fatty acids, selective concentration to produce an economically discardab
Jan 1, 1967
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On the Role of Dixanthogen in Froth Flotation
On the Role of Dixanthogen in Froth Flotation
Sep 13, 2010
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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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Sampling with The Long-Hole Rock Drill at North Broken Hill Limited
Early in 1940 the development and sampling programmes in hand on the North and British Sections of North Broken Hill Limited were such as to necessitate the drilling of a large number of drill holes r
Jan 1, 1941
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Refining Processes at The Broken Hill Associated Smelters Proprietary Limited, Port Pirie, South Australia
The following paper describes the refining practice for the production of lead, silver and gold at the works of The Broken Hill Associated Smelters Pty. Ltd., Port Pirie, South Australia.The refinery
Jan 1, 1937
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Sulphuric Acid Production at Port Pirie
The production of sulphuric acid at Port Pirie by the contact process began in March 1924 with the commissioning of the Electrolytic Zinc Co.'s roasting and acid plant. This plant, operated by B.
Jan 1, 1956
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Carbon Management in a High Gold Price Environment
By J K. Claflin, S R. La Brooy
A case study from a current Ausenco project is presented to demonstrate the importance of maintaining high carbon activity to illustrate the driving force for plant improvements such as a carbon regen
Jul 15, 2013
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Exploration and Resource Modelling of the Goondicum Industrial Minerals Project, Central Queensland, Australia
By H Hoogvliet
The Goondicum Crater industrial minerals deposit is located about 30 km east of Monto, Central Queensland, Australia. Early exploration programs in the 1990s found alluvial ilmenite along the banks of
Oct 5, 2011
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Geology and Alteration Mineralogy of the Karangahake Adularia-Sericite Epithermal Deposit, Hauraki Goldfield, New Zealand
By M Stevens, M P. Simpson, J L. Mauk
The Karangahake deposit was the second largest producer of gold-silver bullion in the Hauraki Goldfield, New Zealand. New mapping of a 2 + 3 km (6 km2) area demonstrates that hydrothermal alteration s
Jan 1, 2005