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IC 8104 Mining, Milling, And Smelting Methods, San Manuel Copper Corp., Pinal County, Ariz. ? Summary And Introduction
By V. B. Dale
San Manuel has been a modern prodigy from its inception to its present status as a block-caving operation producing 33,000 tons per day. The deposit was discovered, prospected, and developed with mode
Jan 1, 1962
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OFR-10-78 Capital And Operating Cost Estimating System Handbook. Mining And Beneficiation Of Metallic And Nonmetallic Minerals Except Fossil Fuels In The United States And Canada
By George K. Clement
Manual estimating method through use of equations, factors and curves for preparation of feasibility type estimates for capital and operating cost of mining and primary beneficiation in the United Sta
Jan 1, 1978
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RI 9256 - Characterization of the Sheep Creek Pb-Zn-Ag-Sn Prospect, North-Central Alaska Range
By W. K. Connor, O&apos
The U.S. Bureau of Mines investigated the Sheep Creek prospect in the north-central Alaska Range to evaluate the Pb, Zn, Ag, and Sn resources. The studies included field investigations, mineralogical
Jan 1, 1989
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OFR-132-77 The Application Of Advanced Mine Air Monitoring Techniques To Mines Using Diesel Powered Equipment
By John H. Johnson
A study of mine air quality was conducted using the latest advanced continuous monitoring instruments. An overview of the various interacting variables in the mine that affect air quality is presented
Jan 1, 1977
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RI 5951 Chemical Reactions In The Electric Arc: Reactive Metal Carbides - Summary
By E. D. Calvert
This Bureau of Mines report discusses the electric-arc reduction of zirconium and hafnium oxides with carbon yielding a metal-metallic carbide mixture. The carbon to oxide ratio in the feed determines
Jan 1, 1962
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Laboratory Investigation Of Seat Suspension Performance During Vibration Testing
By Christopher C. Jobes, Alan G. Mayton, Timothy J. Matty, Joseph P. DuCarme
Mining injury statistics show that a significant number of back, neck, and head injuries are linked to exposure from vehicle vibration. Use of a suspension seat is a common way to isolate the vehicle
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OFR-98B-86 Human Resource Management Skills And Coal Mine Productivity - Final Report - Volume II
By Paul S. Goodman
Volume II The purpose of this study is to explain reasons for the productivity differences in mining crews. The literature on group productivity is examined. Then a new approach to estimating prod
Jan 1, 1985
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OFR-15-90 Mineral Deposit Inventory For Ten Alaska Port Sites - Introduction
The following Inventory was prepared to provide mineral deposit data to the U.S. Army Corps of Engineers for use in the Resource Development Navigation Study in Alaska. The inventory was prepared usin
Jan 1, 2011
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OFR-47(8)-83 Ecological Studies On The Revegetation Process Of Surface Coal Mined Areas In North Dakota - 8. Soil Algae
By Thomas L. Starks
Surface soil/spoil Samples (0-10 cm) from experimental test sites in western North Dakota were aseptically collected during August 1975 and each month (May through September) during 1076 and 1977. Sel
Jan 1, 1982
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RI 7949 Room Temperature Tensile Properties of Titanium and Seven Titanium Alloys Prepared by Skull Casting
By E. D. Calvert
The room temperature tensile properties of commercially pure titanium and seven titanium alloys prepared by skull casting were determined in the as-cast and heat-treated conditions. Data were compared
Jan 1, 1974
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RI 7070 New England Beryllium Investigations
By William R. Barton
Sampling to determine development potential of beryllium deposits was conducted at 31 New England localities. A total of 54 additional areas where the geochemical environment appeared favorable were s
Jan 1, 1968
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IC 8938 New Developments In Personal Lighting Systems For Miners
By William H. Lewis
Energy Research Corp., under contract to the Bureau of Mines, has developed a new miners' caplamp battery. The new battery is based on nickel-cadmium technology and offers significant improvement
Jan 1, 1983
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RI 7277 Factors Affecting Detonation Velocities Of Desensitized Nitroglycerin In Simulated Underground Fractures
By J. S. Miller
The Bureau of Mines conducted surface tests to determine the feasibility of using liquid explosives for underground rock fracturing. The effects of configuration, confinement, length, critical layer t
Jan 1, 1969
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RI 8057 Thermomechanical Method for Secondary Breakage of Hard Rocks
By K. Thirumalai
The feasibility of breaking hard rock by thermal weakening and subsequent mechanical impacting was tested, Field tests at a basalt quarry in Dresser, Wis., demonstrated that large hard-rock blocks (5
Jan 1, 1975
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RI 8521 Fire Resistance Test Method for Conveyor Belts
By M. J. Sapko
A moderately scaled apparatus was developed by the Bureau of Mines to determine the fire resistance characteristics of mine conveyor belts and similar type materials. The design of the apparatus was b
Jan 1, 1981
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OFR-195(1)-83 Evaluation Of Safety Assessment Methods For The Mining Industry - Vol. I
By P. M. Daling
This report, sponsored by the U.S. Bureau of mines, presents the results of an examination of available safety assessment methods and their applicability to the mining industry. Standard safety analys
Jan 1, 1983
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The Mineral Industry Of Alabama (85874f86-2a05-4f9b-bdec-6ab15e1798d9)
By James R. Boyle
The value of mineral production increased 6.2% in 1976. With the exception of coal, practically all commodities registered an increase in production and value; most had an increase in unit value. Tota
Jan 1, 1979
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OFR-74-79 Fabrication And Evaluation Of Optimized Operator Compartments
By D. Christofferson
This final report documents the cooperative efforts of the Engineered Systems Division and the Mining Equipment Division of FMC Corporation during performance of Bureau of Mines Contract H0252091. Imp
Jan 1, 1978
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IC 8313 Salt Domes In Texas, Louisiana, Mississippi, Alabama, And Offshore Tidelands: A Survey (99d29932-b812-47cd-8765-b98c1f9868a2)
By M. E. Hawkins
This Bureau of Mines report provides information on all of the 329 proved salt domes in the Gulf Coastal States and offshore area of the United States. It includes specific data related to location, d
Jan 1, 1966
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Employment And Injuries In The Mineral Industries (8ee09731-ac68-4c21-b0ae-5f71a0789c5f)
By John C. Machisak
THIS CHAPTER of the Minerals Yearbook (Volume III) contains overall injury experience for coal mines, both anthracite and bituminous, coke plants, petroleum and natural gas, peat, and asphalt and rela
Jan 1, 1962