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Residual Aeolian Placers - A New Style of Gold Deposit in New Zealand
Residual aeolian placers (RAPs) are formed by the wind, by preferential entrainment and removal of small and low-density detritusfrom a pre-existing, typically sedimentary sequence containing heavy mi
Jan 1, 2004
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Development of a slimhole downhole nuclear magnetic resonance tool for iron ore – some applications and limitations
By T A. J Hopper, B J. Birt, K K. Trofimczyk
Nuclear magnetic resonance (NMR) has been utilised in the oil and gas industry for over 60 years. The technology was recently identified as having potential value in iron ore, where latent bound moist
Jul 24, 2017
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Biodegradation of manganese dioxide tailings
By Madgwick J. C
Microaerobic biodegradation oflow-grade manganese dioxide slurry tailings was demonstrated in enrichment cultures treated with dilute molasses at 30°C and pH 5·8. Supplementary nitrogenous n
Jan 1, 1986
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Development of a Low-cost Instrument for Barometric Pressure Surveys
By A S. Derrington
High-accuracy, solid-state digital reference barometers have proven to be well suited to conducting underground barometric pressure surveys. The only problem is their expense; at least A$4000 each. Fo
Aug 31, 2015
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Steve and Fred would have been mates – a comminution design evolution story
By D David
Amongst those whose task it is to design tumbling mills and other comminution machines there is an almost religious divide between devotees of the Bond method and devotees of other methods developed i
Sep 11, 2017
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Differences between the Engineering Cultures of Australia and Brazil
By C Fountain
Australian mining and engineering companies have increasingly been investing in the mining industry in Brazil. It is a country of enormous mineral and agricultural wealth, with a well-established mini
Aug 8, 2011
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Potential for Revegetating Base-Metal Tailings at the Tui Mine Site, Te Aroha, New Zealand
By P E. H Gregg, D Horne, R B. Stewart, N Bolan
The Tui mine site is situated on the NW flank of Mt. Te Aroha, at approximately 400 m altitude. During underground mining operations two lead-copper-zinc ore bodies were exploited and processed on sit
Jan 1, 1995
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Reducing ventilation change downtime and increasing operational uptime
By J A. Rowland
When executing a ventilation change the mine ventilation circuit is in a state of flux throughout the entire change period with discrete mine areas both under ventilated and/or over ventilated during
Oct 12, 2022
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Autonomous Haul System Savings – It’s Not about Less Truckies but Better Truckies!
By R Price, B H. Miller
"The rise of autonomous haul truck fleets may have been initially driven by the rapid escalation of the cost of equipment operators, but the actual improvements reported by the major iron ore miners f
Nov 15, 2016
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Seismically Active Mines ù To Buy or Not to Buy
In recent years there have been many changes in mine ownership due to the on-going rationalisation towards larger mining companies. Larger companies inevitably find it hard to manage small mining oper
Jan 1, 2002
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Determination of Fracture Toughness of Anisotropic Rocks Under Water Vapour Pressure by Semi-Circular Bend Test
Failure of rock materials is a process of crack propagation. Crack initiation takes place when the crack tip stress intensity K reaches a critical value called fracture toughness, K1C. The rock fractu
Dec 6, 2010
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Understanding Organisational and Personal Behaviours to Sustain High Productivity and Safety
Although AustraliaÆs coal mining industry is currently experiencing a pleasing period of price relief, long-term trends toward lower real prices will surely continue. Higher price levels attract expan
Jan 1, 2005
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Vein Relationships and Textures at Martha Mine, Waihi
By J L. Mauk
The Martha epithermal Au-Ag deposit contains multiple generations of quartz veins with a range of textures. We examined: + vein textures, + &
Jan 1, 2006
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Using Best Practice Operations as a Strategy for Attracting and Retaining Professional People
By T Trott, G Lumley
"The mining industry suffers from a shortage of professional and other workers. Research and analysis has demonstrated a close correlation between high performance in productivity, maintenance and saf
Nov 20, 2012
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Nickel Slags from the Flash Smelter at Kalgoorlie, Western Australia
The mineralogy of nickel slags from the flash smelter of Western Mining Corporation Ltd. at Kalgoorlie was studied. Residual magnesium silicates in the sulphide concentrates raise the melting point of
Jan 1, 1976
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Indicator and Quartz Reefs
During the past Two years in reef gold mining, "indicators" have received great attention at the hands at the Victorian gold seekers. Many years ago, what was caned the" indicator lode,
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Cr-Ni-PGE in the Mafic-Ultramafic Enclaves Around Arsikere- Tavarkere Lineament, Karnataka
By R K. W Merkle, S Madoom Hussain, T Yellappa
Cr-Ni-Cu¦PGE deposits are known to occur in early Archaean mafic-ultramafic rocks. Early Archaean mafic-ultramafic (MUMF) rocks occur in the western Dharwar craton and range in size from small pods to
Jan 1, 2008
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The Porgera Gold Deposit Structure, Alteration and Mineralisation
By T Leach, B Fulton, R Stewart
Gold mineralisation at Porgera is inferred to have been derived from a deep differentiated magmatic source which is capped by a series of (now tilted) inward dipping sills and stocks, which comprise t
Jan 1, 1995
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Newmont Tanami Operations – Tailings Storage Facilities
By S Thacker, M Noakes
The Newmont Tanami Operations (NTO), formerly the Granites Gold Mine, commenced operation in the mid-1980s with tailings deposition evolving over the past three decades as production has increased and
Jul 27, 2015
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Removal of Horizontal Level Pillar by Means of Blast Hole Diamond Drilling at New Occidental Gold Mine, Cobar, N.S.W.
By Creelman C. A
The removal of a horizontal piIlar between Nos. 9 and 11 levels (1,116 feet from the collar of main shaft) was successfully carried out by blast hole drilling, and, to the best of the authors' kn
Jan 1, 1944