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Latin Mining - Goldcorp?s New Peñasquito Mill
By Barry Olson
The Peñasquito deposit in Mexico is one of the largest grassroots precious metal discoveries to be developed in recent years. Goldcorp Inc. acquired the gold-silver-lead-zinc property with the acqui
Jan 1, 2009
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Multimedia Training Applications In The Mining Industry
By M. Karmis, S. K. Weisiger
The traditional method for training personnel in the mining and other heavy industries has been face-to-face, either via a lecturer in a classroom or through an apprenticeship. With the advent of appl
Jan 1, 2001
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Ground Freezing for Boston Central Artery Contract Section C09A4, Jacking of Tunnel Boxes
By Paul C. Schmall, John F. Donohoe, Arthur B. Corwin, Derek Maishman
Ground freezing was utilized to provide complete stability of the excavation face and complete groundwater cut-off for the jacking of the three tunnel boxes for the Interstate 90 / Interstate 93 appro
Jan 1, 2001
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Transfer Function Model Of Phosphate Heap Leaching
By M. Weatherspoon, S. Gebo, K. Prisbrey
Our objective was to develop a transfer function model of phosphate heap leaching for design, optimization and control. The procedure included analysis of time-lapse photography of a laboratory heap.
Jan 1, 2001
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Rare Earth Elements and selected major elements distribution in the siliceous-clayey silts from the NE Pacific abyssal Basin (Clarion-Clipperton Fracture Zone)
By Lukasz Maciag, Ryszard Andrzej Kotlinski, Ryszard Krzysztof Borówka, Dominik Zawadzki
Concentration and composition of rare earth elements (REE) and major elements in the sediment samples from the IOM H11 Fe-Mn nodule deposit, eastern part of the Clarion-Clipperton nodule field (locate
Sep 1, 2014
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Environmental Issues And Research Associated With MTR Mining In West Virginia
By S. S. Peng, C. T. Holland
Mountain Top Removal (MTR) mining started in West Virginia nearly thirty years ago. This surface mining method can extract multiple coal seams as thin as a few inches thick with total recovery and min
Jan 1, 2000
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Is The Mining Industry Ready To Go Green?
By Michele Ashby
The mining industry is facing new risks from peak commodities, the energy and economic crisis and stock market pressures. The Green Mining Industry Initiative is a risk management strategy for the fut
Jan 1, 2008
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On the Management of Gangue Minerals in the Flotation of Platinum Group Minerals Mining, Metallurgy and Exploration
By Kirsten Corin, Belinda McFadzean, Cyril O’Connor, Jenny Wiese
The Bushveld Complex of South Africa contains almost 90% of the world’s reserves of platinum group minerals (PGMs). In the flotation of PGMs, there are significant challenges arising from the need to
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Rapporteur?s Report Session III: Exposure To Grunerite (Amosite) Asbestos: Historical Perspectives Of The Health Effects
The development of information concerning mesothelioma in South Africa started with the 1959 finding of Dr. J. Christopher Wagner of cases of mesothelioma in persons living in the vicinity or working
Jan 1, 2008
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Analysis of extensometer, photogrammetry and laser scanning monitoring techniques for measuring floor heave in an underground limestone mine - SME Transactions 2018
By B. A. Slaker, T. Miller, M. M. Murphy
An underground limestone mine in eastern Ohio was experiencing significant floor heave and roof falls, attributed to high horizontal stresses. Areas of the mine showing floor heave were monitored with
Jan 1, 2018
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Coal (Coal production by coal-producing regions, 2001)
With the dawning of a new century came the beginning of a new era in the coal industry. Instead of the traditional practice of only buying and selling produced coal in the United States, a coal futur
Jan 1, 2002
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Sulfate Reduction - Designing Systems For Long Term Treatment (238ad8d9-2dab-4d3c-a3f1-88274f1b5135)
By J. Wagner, P. Eger
Although lifetime estimates for sulfate reduction based on total substrate carbon typically range from 20 to 30 years, field and laboratory experiments showed that rates of sulfate reduction decreased
Jan 1, 2001
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The Regulation of Subsidence and Underground Coal Mining in Illinois
By Paul J. Ehret
With the passage of the Surface Mining Control and Reclamation Act (SMCRA), and the implementation of state permanent programs, underground coal mining operations are for the first time subject to gov
Jan 1, 1986
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Chambers Creek Interceptor Sewer Tunnel
By J. Jeffrey Wagner, Michael J. Bailey, Peter M. Douglass
The Chambers Creek Interceptor Sewer Tunnel project consisted of 2-1/2 miles (4 kilometres) of nominal 9-foot (2.7-metre) O.D. tunnel driven through predominantly glacially overridden soils. Mole-Coll
Jan 1, 1985
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Achieving A Dry Tunnel
By Vernon K. Garrett, Gerhard Sauer
INTRODUCTION Generations of tunneling engineers had to fight not only against bursting rock and squeezing ground but also against the destroying power of water. Intrusion of groundwater into the
Jan 1, 1987
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Recent Advances In Drillability
By James Paone
Drillability of rocks by mechanical means is closely related to the physical properties of the respective rocks, Various approaches by previous investigators on rock drillability are presented, as wel
Jan 1, 1966
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Statistical Evaluation Of The Effect Of Conditioning Time And Slurry Concentration On The Flotation Performance Of Siliceous Phosphate
By S. Al-Thyabat
Conditioning of flotation feed is an important prerequisite for efficient flotation. This process depends on parameters such as conditioning time, slurry concentration and slurry pH. The objective of
Jan 1, 2008
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Web Enabled Industrial Desktop To Increase Overall Process Effectiveness In Metallurgical Plants
By J. P. Kennedy, O. A. Bascur
Large metallurgical complexes have more data than a small city and these data change as internal and external conditions evolve. Staffing turnover hinders experienced-based decisions especially with
Jan 1, 2002
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Planning and Construction of the Metro Gold Line Eastside Extension Tunnels, Los Angeles, California
By Jim Richards, Eli Choueiry, Brett Robinson, Amanda Elioff
The Los Angeles Metro Gold Line Eastside Extension (MGLEE) extends Metro’s light rail system to the densely populated and growing East Los Angeles communities. Much of the 6 mile alignment consists of
Jan 1, 2007
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Cyprus-Pima Pilot Plant Predictions Vs. Actual Plant Results
By Fred Pena
Cyprus Pima Mining Company is located in the Mineral Hill District of southern Arizona, approximately 22 miles south-southeast of Tucson. Cyprus Pima Mining Company is owned 50.01% by Cyprus Mines Cor
Jan 1, 1974