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Volcanics and Mineral Deposits Along a Plate Boundary
Waitemata Tectonic Event(25 Ma ago) created a subduction system from the northeast of Northland, causing: (1) the emplacement of the Northland Allochthon (24-23 Ma) which provided argillaceous limesto
Jan 1, 1997
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The Detachment of Coarse, Composite Particles from Bubbles
The Detachment of Coarse, Composite Particles from Bubbles
Sep 13, 2010
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Recent Developments in Tunnel Fire and Life Safety Standards and Guidance
Currently an Australian Standard for tunnel fire safety is being developed for road and rail tunnels. Other local guidance relating to tunnel fire safety that has recently become available includes pu
Jan 1, 2008
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Breccias and Biofacies in Pliocene Sinter at Plumduff, Northland
By K A. Campbell, K A. Rodgers
The Plumduff sinter occurs at Whenuaroa, near Puhipuhi, approximately 30 km north of Whangarei. It is one of three residual sinters in the southern portion of a mid- to late-Pliocene geothermal system
Jan 1, 2001
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The Geology and Metallogeny of Central North Sulawesi
By N M. Caira
The North Arm of Sulawesi hosts numerous gold and base metal occurrences. Compilation and analysis of geological, tectonic, geochemical and isotopic age date data collected over the past six years on
Jan 1, 1999
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Computer Aided Mine Planning at Stockton
Due to highly competitive international coal markets, Stockton mine is bound to produce very high quality coals consistently if it is to maintain and expand its market share. The nature of the deposi
Jan 1, 1989
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Achieving an Environmentally Sustainable Stream Diversion Design in an Opencast Mining Area
Solid Energy New Zealand Limited owns and operates the Ohai coal field (Wairaki Coal Mining Licence, CML) in western Southland. The Morley Stream passes directly through the middle of the CML and has
Jan 1, 2005
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Peculiarities of Quartz Distribution in Zinc Flotation Products and their Influence to Mineral Processing
Peculiarities of Quartz Distribution in Zinc Flotation Products and their Influence to Mineral Processing
Sep 13, 2010
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Grout Injection Around Underground Workings - Reinforcement Potential and Problems
The injection of grouting compounds into the consolidated rock surrounding underground mine workings has long been practiced for the purpose of sealing against water flows. In more recent times howeve
Jan 1, 1994
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Small Scale Gold Mining in Developing Countries
The paper examines the value of very small-scale indigenous gold mining operations to developing countries. The paper looks particularly at this type of activity in two neighbouring countries, Papua N
Jan 1, 1990
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Separation of Minerals Using Electrical Fields
Separation of Minerals Using Electrical Fields The mineral processing industry requires alternative separation techniques to help deal with rising energy costs and decreasing ore grades. Dielectropho
Sep 13, 2010
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Metallurgical Fuel from Victorian Brown Coal
A hard lump char containing only 4 to 5 per cent ash, 0·25-0·30 per cent sulphur and a trace of phosphorus has been produced from Latrobe Valley brown coal by slow drying and carbonization o
Jan 1, 1956
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Review of Variogram Properties and Remarks on its Use in Process Control
By D M. Frantois-Bongarton
Variograms can be powerful tools for the analysis and control of process streams and their sampling. Their uses and proper utilisation have been described somewhat unclearly to date, and their limitat
Aug 21, 2012
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Pairwise evaluation of PDM3700 and traditional gravimetric sampler for personal dust exposure assessment
By B Belle
Dust sampling is pivotal in estimating the ‘dose’ of dust exposure and in deriving dose-response curves in epidemiological studies. Over the last half century, gravimetric sampling has been the fundam
Aug 28, 2017
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Supergene Alunite Group Minerals from Porphyry Copper- Gold Districts in the Southern Atacama Desert as Probe for Climatic Versus Tectonic Controls on Copper-Oxide Mineralisation
By R Riquelme
The El Salvador porphyry Cu deposit (26¦ 15Æ Lat S, ~2700 masl) and associated exotic mineralisation is situated at the back-scarp of the late middle Miocene Atacama pediplain in the western Precordil
Jan 1, 2008
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Iron sinter process control using X-ray diffraction – part : monitoring of low temperature degradation
By U König, N Norberg
To cope with varying raw material qualities and increasing prices for energy, a more frequent and accurate monitoring of the processing of iron ore became the focus in sinter plant operations. Traditi
Jul 24, 2017
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A waste fines cell with a multitude of concurrent activities
By J J. Boshoff
This iron ore mine site, located in the Pilbara region of Western Australia, commenced operations in 1998, with ore derived by mining of open-cut pits in Channel Iron Deposits (CIDs). A portion of the
Jul 23, 2018
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Adsorption of Alkylammoniums in the Interlayer of Montmorillonite and its Effect on the Viscosity of Organo-Montmorillonite Gels
Adsorption of Alkylammoniums in the Interlayer of Montmorillonite and its Effect on the Viscosity of Organo-Montmorillonite Gels
Sep 13, 2010
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Gold Ore Treatment at Macraes Flat
Macraes Mining Company Limited operates a 2.1 million tonnes per annum gold processing plant at Macraes Flat, Otago. This uses a conventional CIL route to treat oxide ore, and a flotation, grind, CIL
Jan 1, 1992
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Predicting Iron Ore Losses and Dilution Factors Using Conditional Simulations
By D Roldpo, M Vidigal, J F. C L Costa
The local cumulative distribution function (lcdf) of a selective mine unit (SMU) can be estimated by conditional simulations using the statistics derived from the sample points, generating multiple eq
Jan 1, 2009