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Overview of current U.S. longwall gateroad support practices: An update
By I. B. Tulu, M. M. Sears
In 2015, 40 longwall mines provided nearly 60 percent of U.S. underground coal production. During this time, about 80 percent of ground-fall-related fatalities occurred in areas where the mine roof wa
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Annual Review 2015 Mining Review
By J. A. Ober
"In 2015, the estimated value of nonfuel mineral production in the United States decreased by 3 percent from that in 2014 (Table 1), mainly as a result of decreased metal and metallic mineral prices,
May 1, 2016
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Results Of The U.S. Bureau Of Mines Investigation Of The Mineral Resources Of The Silver Peak Range North Wilderness Study Area, Esmeralda County, Nevada
By T. J. Close
On September 10, 1991, Secretary of the Department of Interior Manuel Lujan deleted the Silver Peak Range North Wilderness Study Area from the list of U.S. Bureau of Land Management lands in Nevada to
Jan 1, 1993
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The United States? Role With The International Tunnelling Association
By Harvey Parker
The International Tunnelling and Under-ground Space Association (ITA) is a nonprofit organization that represents all aspects of the tunneling and underground space industry worldwide. The United Sta
Jan 1, 2007
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Analysis Of The Mining Engineering Faculty Pipeline
By M. M. Poulton
Universities are not immune from the large number of retirements facing the mining industry. Department heads anticipate that we will need to replace all of the senior mining engineering faculty in t
Jan 1, 2012
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Method For Dynamically Balancing Water In A 50-M-High U-Tube Coal Air-Lift Hydrohoist
By R. E. Miller
Hoisting coal using water and air is a technology which has potential to improve the economics and safety of transporting coal. The Coal Air-Lift Hydrohoist is a prototype coal hoisting system develop
Jan 1, 1995
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Pegmatite Deposits In The Black Hills Of South Dakota
By A. I. Johnson
The pegmatites of the Black Hills of South Dakota are the coarse-grained differentiates of the Harney Peak Granite. The Harney Peak Granite was intruded into the Pre-cambrian schist and quartzites and
Jan 1, 1978
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Industrial Minerals 2004 - Diatomite
By A. Founie
The United States continues to be the world’s leading producer and consumer of diatomite. Production of diatomite in the United States during 2004 was estimated to be 635 kt (700,000 st). This was a
Jan 1, 2005
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Trends In Minerals Exploration Activity
By Phillip Crowson
The annual surveys of corporate exploration expenditures carried out by Metals Economics Group (MEG) show that estimated total spending rose to a record $13.2 billion in 2008 ($14.4 billion including
Jan 1, 2009
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Modeling For Real-Time Performance Measurement: A Strategic Approach
By Russell Barr, Robert E. Cook
As most mining companies are taking advantage of the high market prices for base metals such as steel, copper and zinc, numerous challenges still face them. While demand is strong from countries like
Jan 1, 2007
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Uranium Supply And Demand Worldwide Review ? Introduction
By Michael Davis
In the fairly recent past, with a history of cheap and abundant energy, it has been possible to predict with reasonable confidence that world energy demand would continue to double about every 15 year
Jan 1, 1974
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The Coal Quality Impact Model, On-Line Analysis And Linear Programming For SO2 Compliance Optimal Utility Fuel Planning In The Competitive 1990's
By C. K. Blankenship
The competitive forces now driving the electric utility industry and the constraints of regulation at all levels are changing the way we will all do business now and into the next century. Utilities a
Jan 1, 1995
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Recent Applications Of Groundwater Models To Mining And Engineering Problems
By F. W. Bond
Predictive ground-water modeling is currently being applied to a wide range of engineering applications. In recent years models have been used to evaluate the effect of large ground-water withdrawals
Jan 1, 1980
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Annual Review 2002 – The United States 2002
By P. A. Plunkert, D. E. Morse, L. McCartan, S. F. Sibley
Following the recession of 2001, restrained consumer spending, declines in domestic manufacturing and industrial output, and increased unemployment led to a lack-luster year in the domestic economy.
Jan 1, 2003
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Using Statistical Quality Control For Productivity Improvement
By J. E. Feddock
To succeed in today's competitive coal market, coal companies must continuously improve production and lower cost. However, the coal industry's historical management practices must change to
Jan 1, 1993
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The Historical Development of Coal Flotation in the United States
By Frank F. Aplan
Froth flotation has been used to improve the recovery of fine coal, for minimizing the sulfur and ash content of clean coal and for the removal of fine coal from recycled or discharged backwater from
Jan 1, 1999
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Westrans Project - The Alternative
By M. A. Greenwood
The total value of coal, FOB mine, consumed in the United States was $21 billion in 1985. Roughly $6 billion was spent to transport coal from the mine to the consumer by rail. This indicates the impac
Jan 1, 1986
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Uranium Resources In New Mexico
By V. McLemore
New Mexico ranks 2nd in uranium reserves in the U. S., which amounts to 15 million tons ore at 0.277% U3O8 (84 million lbs U3O8) at $30/lb (EIA, 2006). The most important deposit in the state is sands
Jan 1, 2007
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The Role Of The Japanese Trading Company In Setting World Coal Prices
By Peter J. Szabo
In 1980, a caravan of representatives of Japanese trading companies debarked on the shores of the United States bearing gifts of watches, electronic games, and radios. In early 1983, we find in a park
Jan 1, 1984
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Recycled Road Aggregates ? Introduction
By Charles R. Marek
There is an ever-increasing need for quality construction materials to provide the necessary housing and transportation facilities required for the protection and movement of people and goods. By the
Jan 1, 1974