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The Illinois Mine Subsidence Research Program: An Update
By Robert A. Bauer, Paul B. DuMontelle
In 1985, participants of the multi-year Illinois Mine Subsidence Research Program conducted surveys of subsidence effects on crop production from current high-extraction mining methods, selected a sit
Jan 1, 1986
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Technology for In Situ Uranium Leaching
By David Baughman, Steven Axen, Ray V. Huff, Donald H. Davidson
Introduction In situ leaching (ISL) is an alternative method of mining uranium from deposits that are low-grade, deeplying, and water-saturated. ISL recovers uranium by transporting fluids through
Jan 2, 1980
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Design Concepts For Tomorrow’s Optimized Solvent Extraction Mixer Settler
By B. Gigas, M. Preston, M. Giralico
Optimized mixer settler designs will now handle total flows of over 6,000 m3/hr.Computational Fluid Dynamics (CFD) is a timely and predictable tool for design development. Lightnin has the capability
Jan 1, 2004
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Real Time Integration Of Mining And Metallurgical Information For Efficient Use Of Energy And Water - Preprint 09-133
By O. A. Bascur
The lack of integration of mining and metallurgical information with sufficient detail for analysis causes inefficient operation and hence sub-optimal energy and water use. It is difficult to analyze
Jan 1, 2009
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Shaft Sinking In Difficult Ground Conditions For The LEP Project, Geneva, Switzerland
By F. Dieu, C. Laughton
CERN, the European Laboratory for Particle Physics, is, at present, constructing an underground tunnel and cavern network to house a Large Electron Positron (LEP) colliding beam machine. This paper
Jan 1, 1987
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Little-explored area of Argentina shows base and precious metals potential
By Barton J. Suchomel
Introduction Despite perennial economic turbulence, Argentina continues to push ahead with efforts to develop its fledgling hardrock mining industry. The country lacks the infrastructure and mining
Jan 8, 1988
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Ferromanganese Crusts of the Mendeleev Ridge (Arctic Ocean)
By Natalia Konstantinova, Georgy Novikov, Pavel Rekant, Goergy Cherkashov, Olga Bogdanova
The economic interest of oceanic ferromanganese crusts and nodules is determined by high grades of major, rare and earth rare elements in these types of marine minerals [1]. Modern oceanic ferromangan
Sep 1, 2014
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Using Metal-Tolerant Plants to Reclaim Mining Wastes
By David R. Morrey
During the past 50 years, significant research has been performed in the ecology and physiology of plants that colonize soils containing elevated concentrations of heavy metals. Similar work has also
Jan 1, 1995
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Ecosystem Restoration Within The Anchor Hill Pit Lake, Gilt Edge Mine Superfund Site, South Dakota
By J. Jonas, J. M. Harrington, K. Wangerud, S. D. Fundingsland, J. G. Harrington
EPA NRMRL Mine Waste Technology Program and Region VIII Superfund office are jointly conducting an in-situ technology demonstration at the Anchor Hill Pit Lake, Gilt Edge Mine Superfund site. The goal
Jan 1, 2004
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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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Additional Test Results for Comparison of Penetration of Grout Made with Various Ultrafine Cement Products
By Shimi Tzobery, Jay Davenport, Raymond Henn, Sam Bandimere
Over the past several decades, the use of cement-based grouts using ultra fine cement as a replacement for portland cement has begun to gain acceptance as an alternative to chemical solution grouts us
Jan 1, 2005
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What It’s Worth – A Review of Mineral Royalty Information (3f7e7070-03d1-4ef1-890a-5969adff070d)
By H. Lyn Bourne
This is the ninth annual tabulation of royalty information. Again this year, some of the older information has been deleted to make room for more than 30 new entries. Several articles and publicati
Jan 1, 1991
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Super Cycle: Past, Present And Future
By Douglas B. Silver
Traditional cycle theory would postulate that if you have a supply shortage relative to demand, the price will increase because buyers will incrementally increase the price they are willing to pay to
Jan 1, 2008
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Effect Of Particle Shape On The Filtration Rate In An Industrial Iron Ore Processing Plant
By J. J. Carlson
Studies were carried out to determine whether filtration rate changes observed in an iron ore concentrator were due to variations in particle shape. It was confirmed that ores mined from different loc
Jan 1, 2008
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Oilwell Cementing: What Is Next?
By A. Mahmoudkhani
Primary cementing is the process of placing cement in the annulus between the casing and the formations exposed to the wellbore. Portland cement was first used in 1903 in the Lopoc Field in California
Jan 1, 2012
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WMATA Use Of The New Austrian Tunneling Method For Lining And Support
By Larry H. Heflin
The Washington Metropolitan Area Transit Authority's Wheaton Station and tunnel design was completed and offered for bid in the Spring of 1983. The format was unique to the Authority: a four part
Jan 1, 1985
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Using Option Pricing to Predict Market Values of Publicly Traded Mining Companies
By Andrew K. Simpson
What will this deal do to the company’s stock price? This question arises when a publicly traded mining company is presented with a new mine project, or business combination. The standard tool fo
Jan 1, 2000
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Reduction Of Cyanate To Cyanide In Cyanidation Tailings Under Reducing Environments
By H. K. Lin
Residual cyanide in cyanidation tailings can be detoxified by its oxidation to cyanate, as in the Inco and Degussa processes. However, cyanate, the product of detoxification and other oxidation proces
Jan 1, 2008
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Amax Coal’s Delta Mine – Medium-Sized, High-Sulfur Operation Survives Markets Challenges
By Steve Kral
Amax Coal Industries Inc.'s Delta Mine is a medium-sized. high-sulfur coal producer that has lived up to the challenges posed by nearly six decades of a highly competitive domestic coal market.
Jan 1, 1993
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BWARI Tunneling Underway
By Thomas L. Richardson, David R. Chapman, Gary W. Gilbert
The two contracts of the Big Walnut Augmentation/Rickenbacker Interceptor(BWARI) sewer project for the City of Columbus, Ohio total nearly 35,000 feet of 14and 12-foot diameter tunnel. EPB TBMs will i
Jan 1, 2005