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Effect of Operating Parameters on the Breakage Process of Calcite in a Stirred Media Mill Mining, Metallurgy and Exploration
By Diler Katircioglu-Bayel, Oner Yusuf Toraman, Safak Gokhan Ozkan
One of the most energy-intensive processes for producing submicron range calcite is stirred media mill. In the present work, numerous operating parameters such as solid mass fraction, grinding media s
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Geologists Add Value at Newmont’s Nevada Mines – Part Two
By Wayne Trudel, Eric Saderhold, Lloyd McEvers, Lori Clarke, Charles Lynn Bolin, Leroy Schutz
Editor’s note: This is the second part of a two-part series on how mine geologists added about 141t (4.53 million oz) at Newmont Mining’s gold operations in Nevada during 2003. Part one (ME, July2004
Jan 1, 2004
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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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Increasing Kaltim Prima Coal Overland Conveyor Speed To 8.5 MPS
By Poltak Sinaga
PT Kaltim Prima Coal?s 13.1 km overland conveyor (OLC) was commissioned in 1991. It is of conventional 3 roller 350 trough belt type. Cost and performance optimization during initial design ended up w
Jan 1, 2008
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Targeting and Prioritizing Safety Interventions in West Virginia – Preprint 97-51
By J. M. Dean, R. L. Grayson, R. C. Althouse, M. J. Klishis, G. L. Winn
Using powerful database management software, nested-field analysis and microanalysis of narratives have been made of West Virginia accident data, resulting in a new approach for targeting and prioriti
Feb 24, 1997
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Underground Mine Air and Strata Temperature Change Due to the Use of Refuge Alternatives
By M. A. Reyes, L. Yan
Heat and humidity buildup within refuge alternatives (RAs) may expose occupants to physiological hazards such as heat stress. The Mine Safety and Health Administration (MSHA) regulations require RAs i
Nov 22, 2019
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Session 5: Assessment Of Health Risk Associated With Exposure To Nonasbestiform Amphiboles Including Ingestion Studies: Rapporteus?s Report
Paper 1: Risk of gastrointestinal cancers from inhalation and ingestion of asbestos, John F. Gamble Selikoff suggested the hypothesis that asbestos exposure is causally associated with increased
Jan 1, 2007
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Overview Of The Mineralogy Of The Biwabik Iron Formation, Mesabi Iron Range, Northern Minnesota
By Peter L. McSwiggen
The mineralogy of the Biwabik Iron Formation changes dramatically from west to east as the formation nears the basal contact of the Duluth Complex. This reflects a contact metamorphism that took place
Jan 1, 2007
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Overview Of The Mineralogy Of The Biwabik Iron Formation, Mesabi Iron Range, Northern Minnesota (920373f1-b6c7-4867-b2db-6fdc7d83ab71)
By Peter L. McSwiggen
The mineralogy of the Biwabik Iron Formation changes dramatically from west to east as the formation nears the basal contact of the Duluth Complex. This reflects a contact metamorphism that took place
Jan 1, 2007
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Soft Rock Tunneling: Equipment Selection Concepts And Performance Case Histories
By Priscilla P. Nelson
Many concepts concerning equipment selection, performance prediction, and evaluation of support requirements for tunnel construction in soil or hard rock tunnels cannot be extrapolated directly for ap
Jan 1, 1987
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Mining Foundation of the Southwest Honors 2003 Inductees
The 21st Annual American Mining Hall of Fame Awards Banquet sponsored by the Mining Foundation of the Southwest will be held at the Sheraton Tucson Hotel in Tucson, AZ on Saturday, Dec. 6, 2003. Th
Jan 1, 2003
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Thermoanalytical Study On The Oxidation Of Sulfide Minerals At High Temperatures
By S. E. Pérez-Fontes
An experimental study on the oxidation of chalcopyrite (CuFeS2), pyrite (FeS2), covellite (CuS) and chalcocite (Cu2S) particles was conducted by means of differential scanning calorimetry (DSC) and th
Jan 1, 2007
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Exploration: Both a Boom and Bust Year - 1980 Annual Review
By Paul Russell, M. M. Kimberley, Erick F. Welland, Louis Cope, C. C. Mosher, William M. Shepard, William C. Larson, Graham Closs
Exploration activities in 1980 felt the effects of unstable economic conditions and oscillating metal prices. In the cyclical, boom-or-bust precious metals and uranium markets, precious metals activit
Jan 5, 1981
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Manhattan Mine: Linking Reclamation and Sustainable Development
By Mark Ioli, Debra Struhsacker
In September 2004, Gale Norton, U.S. Secretary of the Interior, presented the Manhattan Mine with a U.S. Bureau of Land Management’s 2004 Hardrock Mineral Environmental Award. The Manhattan Mine is a
Jan 1, 2005
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Petromineralogical Studies of Late Paleocene–Middle Eocene Phosphate Nodules in the Subathu Basin of Solan District, Himachal Pradesh Mining, Metallurgy and Exploration
By Shamim A. Dar, & Samsuddin Khan, & K. F. Khan, Mohd Shuaib
The Late Paleocene–Middle Eocene phosphate nodules of Solan District of Himachal Pradesh belong to green facies of Subathu Formation of Sirmur group. Field observations indicate sporadic distribution
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Petromineralogical Studies of Late Paleocene–Middle Eocene Phosphate Nodules in the Subathu Basin of Solan District, Himachal Pradesh Mining, Metallurgy and Exploration (16f70676-2537-4d77-9881-921b560cf936)
By Shamim A. Dar, Mohd Shuaib, K. F. Khan, Samsuddin Khan
The Late Paleocene–Middle Eocene phosphate nodules of Solan District of Himachal Pradesh belong to green facies of Subathu Formation of Sirmur group. Field observations indicate sporadic distribution
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Heavy- Mineral Deposits Of The Fox Hills Formation Located Near Limon, Colorado
By F. L. Pirkle
A heavy-mineral deposit about 1.6 kilometers (I mile) in length and averaging about three meters (10 feet) in thickness is exposed approximately130 kilometers (80 miles) east of Denver, along Intersta
Jan 1, 2011
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Water Resources Development In The Arid Andean Antiplano Southern Bolivia
By S. A. Osterberg, J. L. Breckenridge, R. S. Popielak
Multidisciplinary investigations were completed to prove the availability of water resources for the proposed San Cristóbal silver-lead-zinc mine in the arid Altiplano of Bolivia. Surface water resour
Jan 1, 2002
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Economic Decision-Making For Methane Drainage Systems For Underground Coal Mines – Preprint 97-157
By J. M. Mutmansky, A. Wang
This paper defines the elements of a basic economic model for decision-making when considering a methane drainage system for an underground coal mine. A drainage system will require significant capita
Feb 24, 1997
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Continuously Operating Multiple Ventilation- And Fire Gases Monitoring Systems At Multilevel-Multiseam Collieries On The European Continent
Multilevel-multiseam hardcoal mines on the European continent usually consist of a huge network of underground openings, sometimes more than 200 km long in total, with some longwalls operating down to
Jan 1, 2012