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Hydrological Environments for Vein Mineralisation in the Hauraki Goldfield, New Zealand
The epithermal Au-Ag deposits of the Hauraki Goldfield have formed in the convergent plate margin setting of the Coromandel Volcanic Zone (CVZ). The deposits form as siliceous lodes in the upper parts
Jan 1, 1991
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Brisbane Airport Link Project – Design and Construction of the 26 m Span Kedron Caverns: Comparing Monitoring Data with the Design
By I Coombes, M Trim, Y Sun, M McRae, A Spiegl, H Lagger, A Amon, P Barraclough, M Villeneuve
The Brisbane Airport Link Project (AirportlinkM7) includes the design and construction of more than 12.5 km of tunnels, with the Kedron interchange including four ramp tunnels that intersect with main
Sep 17, 2014
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Continuous Vacuum Dezincing Plant at B.H.A.S. Pty Ltd., Port Pirie
By Williams K. C
This paper presents a brief account of the plant which has been developed at Port Pirie to recover, by vacuum distillation, the greater part of the zinc content of desilverized lead. The present plant
Jan 1, 1956
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The Economic Potential of the Greymouth Coalfield
The Greymouth Coalfield contains New Zealand's greatest known resource of bituminous rank coal. The coals are of very high quality, with low ash and sulphur contents and a range of other properti
Jan 1, 1985
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High Yield Bacterial Leaching of Copper Concentrates
By Madgwick J. C
A new strain of Thiobacil/us ferrooxidans (SPK I) has been isolated which has a higher copper to iron release ratio (2.04) than the standard T ferrooxidans (CPBI) (1.12). The diminished iron oxidizing
Jan 1, 1983
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Savage River Mines The World's First Long Distance Iron Ore Slurry Pipeline
By Davis RA, Wasp EJ, Cowper NT
The transportation of solids by pipeline is not new. In 1891 a United States patent broadly covering a method of pumping coal with water was granted to W. C. Andrews. His pilot plant was constructed
Jan 1, 1969
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Regional Mappings Using Aerial Photographs as an Aid to Ore Location: The Mount Fitton Talc Deposit, South Australia
The assistance that can be gained by the use of aerial photographs in the geological examination of a mineral field is clearly illustrated by the results of a rapid reconnaissance survey of the newly-
Jan 1, 1950
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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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The Rapid Determination of Silicon in Low-Alloy Irons
By Belcher C. B
A procedure was required for the rapid determination of silicon in low-alloy irons and a suitable method used the formation and reduction of silicomolybdic acid at 50°C. The procedure gives resul
Jan 1, 1965
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Technical Note-A problem with ventilation network analysis
This technical note describes a problem with WANG82, a ventilation network analysis programme. The problem was highlighted by Renison Ltd when using the programme on large, complex networks. Under cer
Jan 1, 1986
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Radiometric Disequilibrium Analysis of the Carnotite Uranium Deposit at Yeelirrie, Western Australia
By Fisher N. I
Disequilibrium ratios (U3O8/eU3O8), which assess the degree to which gamma activity represents the uranium content of a sample, have been measured on a representative set of samples from the ore zone
Jan 1, 1980
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Is Bigger Better? Building Market Resilience into Process Plant Design
By P L. McCarthy
In an environment of accelerating capital costs, limited capital availability and strongly cyclic metal prices, there is a difference between a robust mining and processing operation and one that woul
Jul 15, 2013
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Presidential Address (d5ebea7f-aa5b-44e8-8852-0e1790fcdc7e)
Mr. Murray said: Having recently returned from a visit to America, it may be of interest to members to hear something from me of the mining fields and metallurgical works which I had the opportunity o
Jan 1, 1927
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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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Improving Cooling Tower Performance with Innovative Horizontal Outflow Design
By T Hirsi, M Weatherseed, T Ritasalo
Cooling tower design has not advanced significantly in the last decade. Recognising this, Outotec has developed an innovative horizontal outflow cooling tower with increased performance compared to co
Sep 7, 2015
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The Oxide Ore Treatment Plant, Mount Morgan
This modern plant was installed with the object of treating all oxide ore and payable dump material by the cyanide process.The plant is located on a ridge on the eastern side of Linda Gully. The mill
Jan 1, 1939
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All-Flotation at North Broken Hill Limited
Author's Note: Since the paper on "All-Flotation at North Broken Hill Limited" was read and discussed, the metallurgical results obtained have conclusively justified the adoption of the
Jan 1, 1931
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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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The Great Reefton Gold Belt
IF a straight line should be drawn on the map (See 1, page 96) through the northern half of the South Island of New Zealand, from Mt. Domett in the north to Arthur's Pass in the south, and anothe
Jan 1, 1910