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High and Low Sulphidation Epithermal Gold Mineralisation in South KoreaBy C M. Sennitt, M J. Spadafora
Systematic field evaluation of known gold and clay occurrences in South Korea has led to the recognition and discovery of both high and low sulphidation gold-silver epithermal systems. These are assoc
Jan 1, 1999
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Numerical Modelling of Unsaturated Flow in Uniform and Heterogeneous Waste Rock PilesBy B BussiFre, J Molson, M Aubertin, G W. Wils
Waste rock piles containing reactive sulfide minerals can serve as long-term sources of acid mine drainage (AMD). Within these piles, many physical, geochemical and biological processes can contribute
Jan 1, 2003
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Effects of Alternate Methods of Conditioning on the Reflotation of Copper Concentrates at WMC (Olympic Dam Operations)By P Heppner, J Schell, R Newell
The effect of various methods of conditioning on subsequent flotation performance was reviewed, where complex interactions involving attrition, aggregation, dispersion and surface cleaning were discus
Jan 1, 2000
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The Challenges of Selective Mining within the Globe Progress Gold Mine, Reefton, South Island, New ZealandBy R Cooksey
The Globe-Progress Mine is an open pit gold mine that is part of the larger Reefton Goldfields deposit located on the West Coast of New Zealand. The regional geology comprises a series of north to sou
Aug 22, 2011
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Gas reservoir and emission modelling to evaluate gas drainage to control tailgate gas concentration and fugitive emissionsBy D J. Black
The process of longwall coal extraction coal causes fractures in the overlying and underlying strata and these fractures become pathways for gas released from adjacent coal seams to flow into the mine
Aug 28, 2017
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Air-core imaging in a hydrocyclone using non-invasive ERT Technique – effect of reconstruction algorithmsBy N Mangadoddy, P Jampana, S Diddi
The study of air-core dynamics in hydrocyclone operation is essential for predicting separation efficiency in mineral processing. Electrical resistance tomography (ERT) allows non-invasive measurement
Aug 24, 2022
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Coal's Impact on the Greenhouse EffectA number of gases, such as carbon dioxide, methane, water vapour, nitrous oxide, ozone and chlorofluorocarbons are transparent to incoming short-wave radiation, but are relatively opaque to outgoin
Jan 1, 1989
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Numerical Analysis of Extreme Deformation and Ground Support Performance at the N3500 ProjectThe N3500 orebody is the northern continuation of the 3500 orebody at Xstrata Copper's Enterprise Mine and occurs at a depth of 1.3 to 1.8 km. At the nearby S3500 orebody, extreme deformation was
Nov 25, 2010
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Challenges in Modelling Large Complex Orebodies at the George Fisher North MineBy M Haydon
How do you portray a large structurally and stratigraphically complex deposit to return a meaningful resource estimation, and produce a geological model that is useable for planning on a daily basis?
Jan 1, 2006
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Comparative Studies of Stress Measurements Devices in Different Rock ConditionsMany stress measuring instruments use overcoring stress-relief principles but adopt different sensing techniques. Every technique is subject to certain limitations of rock types and conditions. To inv
Jan 1, 1990
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The Fortescue Metals Group Story - From Exploration to the Third Largest Iron Ore Producer in AustraliaBy W G. Rowley
The Fortescue Metals Group story began in 2003 with a vision to establish an infrastructure project that would connect the stranded iron ore deposits of the Pilbara region of Western Australia with th
Jan 1, 2009
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Theory of Sampling meets the National Science Foundation I-Corps™ programBy V Rodríguez, M Hormaza, R J. Romañach, C Pinzón-de la Rosa
The authors have presented their ideas for developing a powder sampling device in the I-Corps™ program sponsored by the National Science Foundation (NSF). This is an intensive customer discovery progr
May 9, 2017
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Reinstating a One Hundred Year Old Tunnel in the Southern Alps Through Highly Fractured Schist for Hydro GenerationBy R Shelton
The Big Wainihinihi River and tunnel are located on the western side of the Southern Alps of New Zealand within the active Alpine Fault zone, which marks the boundary between the Pacific and Australia
Mar 8, 2011
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Characterisation of In Situ Gold Particle Size and Distribution for Sampling Protocol OptimisationBy I M. Platten, Y Xie
Sampling protocols that are designed to suit the mineralisation style will result in a reduction of the nugget effect and hence resource risk. The a priori need for all sampling programs is the effect
Jan 1, 2008
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Coalmine methane emission estimates – an evolving understandingBy S Raval
The estimation of greenhouse gas emissions from coalmines is increasingly becoming a priority for both operators and regulators. At the same time, involved scientific challenges in the methane measure
Sep 1, 2024
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Liner Design for Improved SAG Mill PerformanceA review is presented of developments in mill liners to improve performance in terms of wear, impact, as well as mill grind and throughput. These developments are in response to the growth in size of
Jan 1, 1999
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Testing new estimation techniques – rank and replace: a stockwork case studyBy D Finn, D Kentwell
Experience has shown that the E-Type multiple indicator kriging (MIK) estimation technique often works well for resource estimation in stockwork mineralisation that contains a mixture of high and low-
Sep 20, 2017
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Applying Risk Management to the Mining IndustryBy Neville WE, Parkinson J
One of the earliest recorded risk management schemes was implemented by the boatmen of the Yangtze river some 4,000 years ago.. Between them they arranged for shipments to be split up in such a wa
Jan 1, 1986
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A Stratigraphy and Tectonic Model for the Drummond Basin and its Relationship to Gold MineralisationThe Drummond Basin is a large intracratonic basin which developed in central Queensland during Late Devonian to Early Carboniferous times. It is postulated that the Drummond Basin developed as a f
Jan 1, 1989
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Transcending the Mining Discipline Divide – Multidisciplinary, Interdisciplinary or Transdisciplinary?By J Coombes
"In today’s challenging climate of reduced staffing, limited funding and uncertain markets, we are called on to operate more productively and ‘be more innovative’. As an industry, we are quick to iden
Mar 8, 2016