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A Review Of The Programs And Activities Of The Generic Mineral Technology Center For Respirable DustBy Robert L. Frantz
The U.S. Bureau of Mines (USBM) established on August 15, 1983, a Generic Mineral f Technology Center (GTC) for Respirable Dust within the Mining and Mineral Resources Research Institutes (MRIs) at Th
Jan 1, 1986
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Update On Development Of Mini-Disc Drill Bits (7d11ffca-1775-4354-8048-b0fdabbabc6d)By J. E. Friant
The Mini-Disc TM cutter drill bit is a radical design departure from the traditional tri-cone rock drill bit. Miniature disc type cutting tools as small as 3.25 inches (82.5 mm) diameter are fitted to
Jan 1, 1999
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Geology and production of humate and weathered coal in New MexicoBy G. H. Roybal, J. M. Barker
Humate mining in New Mexico is a small industry [455 m3 (16,079 cu yd) valued at $395,894 for 1983] with three mines active in 1985. Either humate (carbonaceous claystones rich in organic matter) or w
Jan 1, 1987
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Borehole Logging, Structural Properties Of Rock And The Design Of Mine OpeningsBy Hemendra N. Kalia
To plan a safe and efficient coal mining operation, the design engineer should use all the available information regarding the property to be exploited. The reliability of the mining operation must be
Jan 1, 1973
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A Papermaker's Perspective Of Industrial Minerals For PaperBy P. C. Clark
This paper is an overview of the requirements and concerns for minerals and pigments used in papermaking. The first part of this paper deals with mineral or pigment filling in the actual papermaking p
Jan 1, 1993
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Prospects And Potential For Mineral Development In Haiti (411013c4-6714-497a-94c6-52b64c0b8c46)By K. Voltaire
As can be guessed from the subtitle, this paper will not be a geologist's one since neither of the authors is a professional geologist. This will be an attempt to present the various aspects of t
Jan 1, 1978
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E-Power Pipe®: Two-Stage Trenchless Method for Long Drives in Small Diameters - NAT2022By Peter Schmäh, Tobias Engel
The E-Power Pipe technology was originally developed for the trenchless installation of protective pipes and pipelines of 10" to 28" diameter, over long distances of more than 4,000 ft. The twostage p
Dec 1, 2022
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The Effect Of Overall Pit Slope And Pit Geometry On The Dispersion Of Pollutants In A Hypothetical Arctic Open-Pit MineBy A. Choudhury
Deep open-pit mines are becoming increasingly common in the highly mineralized arctic and sub-arctic regions. Air inversion is a frequent occurrence in these regions, and is exacerbated by complex geo
Feb 27, 2013
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Geochemical Changes During In Situ Uranium Leaching With Acid (a4592f31-2d05-47a5-a09a-77aa1b2598a8)By Daryl R. Tweeton
The Bureau of Mines measured the geochemical changes as H2S04 was used for in situ uranium leaching by Rocky Mountain Energy Company near Casper, Wyoming. Cores and ground water were analyzed before l
Jan 1, 1979
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Analysis of Heat Loss Mechanisms for Mobile Tent-Type Refuge AlternativesBy P. T. Bissert, L. Yan, M. D. Klein
"Federal regulations require that refuge alternatives (RAs) are located within 305-m (1000-ft) of the working face and spaced at one-hour travel distances in the outby area in underground coal mines i
Jan 1, 2016
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Influence of ventilating air temperature fluctuations on stress distribution around an airway in frozen groundThe thermal field of a frozen rockmass surrounding an airway is often disturbed due to thermal interaction with mine ventilation air. Outside air entering an underground mine changes the parameters of
Jan 1, 1991
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Risk Mitigation In Global Mining DevelopmentBy Wayne W. Murdy
Since 1993, Newmont Mining has been growing through the development 'q of three major foreign mining operations with a fourth under construction. The first project, Yanacocha in Peru, began ope
Jan 1, 1997
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Planning Of Support Work In Underground Coal Mines Using MANSUPP (0730a175-0132-449a-a9c0-68a923e3ad35)By J. M. Dean
The MANpower SUPport Program (MANSUPP), a part of the Mine Management Support System (MMSS), allows an underground coal mine site user to determine manpower requirements for production support work by
Jan 1, 1992
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Geology Of The Cove Gold-Silver DepositBy B. A. Kuyper
The Cove gold-silver deposit is located 50 km southwest of Battle Mountain, Nevada and 1.5 km northeast of the McCoy Mine. Total proven and probable reserves are 48.7 Mt (53.7 Mst) with an average gra
Jan 1, 1991
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An Investigation Of Grout Penetration Depth In Fractured RocksGrouting is mainly used to improve mechanical properties or decrease the permeability of rock mass around civil and mining projects. The purpose of this paper is to present the most effective factors
Feb 27, 2013
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Magnetic Separation Of Fine Mineral Sulphides Following A Leach Pretreatment To Enhance Magnetic SusceptibilityBy S. T. Hall
The authors have previously described a method of enhancing the magnetic susceptibility of pyrite by a mild alkaline oxidative pressure leach (Hall et al, 1985). This finding was successfully applied
Jan 1, 1985
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Underground Movement And Subsidence Over United States Potash Company MineBy Earl H. Miller
The United States Potash Company was the original discoverer and first producer of under-ground mined potash ore in North America and commenced active production of potash in 1931. In July 1956, the c
Jan 1, 1958
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Past And Present Trends For Mine Power SystemsBy John A. Dunn
The history of underground coal mining has developed through the years from a manual digging and loading process to the highly mechanized pro- cess that it is today through the use of electric power.
Jan 1, 1964
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RIM: A Method Of Predicting Coal Seam DiscontinuitiesBy T. W. Lloyd
Accurately predicting coal seam discontinuities is an important part of modern underground coal mining. Conventional methods of coal exploration sometimes fail to identify rapid variations that may s
Jan 1, 1986
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Advancements in Screen Surface Technology in Gold Processing PlantsBy M. Zaske, E. R. Mortensen
"As mine operators continuously look for ways to improve functionality and increase the capacity of their facilities, existing process equipment is often pushed to and past its designed limitations. A
Jan 1, 2015