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Measuring the Resistivity of Titanium Minerals in a Corona Field
By P N. Holtham
As part of a long-term study of titanium minerals processing being undertaken by the Julius Kruttschnitt Mineral Research Centre (JKMRC), techniques have been developed to measure the electrical prope
Jan 1, 2001
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Mining Related Environmental Database for West Coast and Southland: Data Structure and Preliminary Geochemical Results
By D Thomas
Geochemical data related to AMD for the West Coast and Southland regions have been collated into a relational database and GIS system. The types of information include; rock geochemical data, water ch
Jan 1, 2005
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New Zealand Coal Qualities - How Do They Rate in World Markets?
By T DePetris, B B. Beamish
There has been a gradual increase in the volume of internationally traded thermal and coking coal, with emphasis on blending of coals rather than single coal usage. New Zealand can take advantage of t
Jan 1, 1994
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Active and Extinct Geothermal Systems - A Summary
Active geothermal fields show many of the characteristics seen in hydrothermal ore deposits but there are important differences as well. There are, for example, many differences in geology and chemist
Jan 1, 1986
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Supergene Iron Ore and Disorder
By F R. M Pires, R M. Carvalho
Supergene processes in banded iron formation (BIF) result in important dissolution, material transport and simultaneous disorder of the residual bands. The rock physical properties such as density, po
Jan 1, 2002
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Analysis of Slurry Sampling Arrangements at a Froth Flotation Plant
By P Minkkinen, J Lohilahti, T Korpela, B McPherson
Concentrator plants intake the ore from the mine and produce concentrates by extracting valuable minerals in a succession of process steps. Controlling the extraction process and detecting changes in
Jul 29, 2014
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Experimental Validation of a Flotation Cell Model
Experimental Validation of a Flotation Cell Model
Sep 13, 2010
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Cost/Performance Evaluation of Gold Placer Mining Methods - For a Range of Gold Placer Deposits in the Bodaibo District, Russia
The profitability of gold placer mining operations is determined by more factors than many placer miners recognise until too late. This study is based upon field trips to examine the efficiency of min
Jan 1, 2007
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A comparison of X-ray and electron-based analysis techniques for characterising the mineralogy and alumina distribution in iron ores
By M I. Pownceby, C M. MacRae, A Torpy
Electron probe microanalysis (EPMA) and quantitative X-ray diffraction (QXRD) techniques are capable of providing high-quality quantitative information regarding the phase mineralogy and distribution
Jul 24, 2017
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Economic recovery of low-grade fine iron ore using the Optima Classifier
By F van de Venter, J Monama, T Kale
For a multitude of years fine iron ore, -1 mm, across the world has been deposited as discard material in tailings facilities. This contributes to environmental problems, decreases plant yield and inc
Sep 18, 2023
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Mining and the Resource Management Act 1991: Is the Playing Field Level?
By A P. Brown
Comparison of legal permits required for mining (as opposed to prospecting or exploration) inNew Zealand, under the Mining Act 1971 and the Resource Management Act/Crown Minerals Act 1991. Mining gene
Jan 1, 1995
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Assessing the Potential for Industrial Minerals
It is possible to divide industrial minerals into four general categories: 1. fuels, 2. construction materials, 4. agricultural minerals, and 4. industrial minerals. It is proposed to ignore the
Jan 1, 1984
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The Application of Magnetic Assessment to Ironsands Production
By A J. Falconer
Two magnetic parameters are proposed as a basis for the assessment of ironsands beneficiation. The parameters are determined for raw sand prior to dredging and for magnetic separator head feed over a
Jan 1, 1980
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Planning the Kotre Basantpur-Pachmo Coking Coal Mine
The contiguous Kotre Basantpur and Pachmo (KBP) coal blocks in the Hazaribagh District of Jharkhand State in east India are being developed by Tata Steel Limited (Tata Steel) to supply coking coal to
Dec 6, 2010
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The Building Stone Industry - Its Resurgence in Otago
Dimension stone is the term generally given to rock used in building construction. During early European history in Otago, locally available dimension stone products were easily obtained. Crude rock s
Jan 1, 1992
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Removal of As(III) and As(V) in Aqueous Solution
Removal of As(III) and As(V) in Aqueous Solution There are toxic arsenical species such as As(III) and As(V), and arsenious species have specially strong toxicity. The strong toxicity causes contamin
Sep 13, 2010
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The Extraction of Metals from Geothermal Fluids
Spectrum Resources commenced operations as a public listed mining company in August, 1983, with a variety of precious metal projects in New Zealand. At that time the outlook for most mineral commoditi
Jan 1, 1986
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Operation of deep mill level zone mixed flow fans after the first fan upgrade – a parallel fans case study
By K Lownie, R Sani, A Sianturi
Part of the PT Freeport Indonesia (PTFI) mine production is in the process of transitioning from the deep ore zone (DOZ) mine to the deep mill level zone (DMLZ) mine. The DMLZ mine is the next lift in
Aug 28, 2017
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Gold Deposits in New Zealand - Their Distribution and Tectonic Setting
The New Zealand microcontinent is relatively well endowed with gold deposits; its past gold production per unit area of 3.2 kg/km2 ranks high on a world scale. Total recorded production (1857 - 1986)
Jan 1, 1988
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Mineralisation of the Morobe Goldfield, Morobe Province, Papua New Guinea
By B A. Mowat, T M. Leach
The Morobe Goldfield inPapua New Guinea has produced in excess of 120 tonnes of gold from predominantly alluvial sources. Hardrock gold has been mined historically at Wau (23 t) and Edie Creek (4 t) a
Jan 1, 1995