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RI 7858 Chemical Analysis of Slickensides From Coal Mine Roof Shale
By George A. Savanick
Coal mine roof shales fracture preferentially at slickensided surfaces because of weak or nonexistent adhesion between two slickensided rock surfaces. The purpose of this Bureau of Mines research was
Jan 1, 1974
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Bulletin 95 A Glossary of the Mining and Mineral Industry
By Albert H. Fay
This glossary is publi~hed- by the Bureau of Mines as a contribution' to the mining literature in the belief that it will fill a long-felt need. It contains about 20,000 terms; these include both tech
Jan 1, 1920
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IC 8073 The Pacific Northwest Steel Industry ? Summary
By Gary A. Kingston
Rolled steel, steel forgings, and steel castings in the Pacific Northwest (Washington and Oregon) are produced principally in the Seattle, Wash., and Portland, Oreg., metropolitan areas. Steel-mill pr
Jan 1, 1962
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RI 3243 Smelting In The Lead Blast Furnace - Handling Zinciferous Charges. XI.- Preparation Of The Charge By Sintering ? Introduction
By G. L. Oldright
The studies previously made on Smelting in the Lead Blast Furnace have dealt with the custom smelter of the International Smelting Co. at Tooele, Utah,4 and on the smelter of the Bunker Hill & Sulliva
Jan 1, 1934
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IC 6875 Sand And Gravel Excavation: Part 5: Motor-Truck Haulage, Conveyor-Belt Haulage, Pumps And Pipe Lines, Barges And Towboats, Aerial Trams - Introduction
By J. R. Thoenen
This circular is part 5 of the third paper (entitled "Excavation") of a series summarizing the technical problems involved in the production and preparation of sand and gravel. Part 1 discussed the us
Jan 1, 1936
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OFR-143-83 Demonstrating The Noise Control Of A Coal Preparation Plant - Volume II: Long Term Treatment Evaluation
By Matthew N. Rubin
This report summarizes the work performed under USBM Contract No. H0155155. The purpose of this work was to obtain operational data on retrofit noise control treatments suitable for use in coal prepar
Jan 1, 1982
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IC 6521 Safety in the iron mines of the Menominee Range Michigan
By F. S. Crawford
"After many years of safety activity in the United States in one form or another it becomes increasingly evident to those in contact with safety work that to achieve continuous good results in acciden
Oct 1, 1931
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RI 3336 Beneficiation Of Spodumene By Decrepitation ? Introduction (132e4d98-bf25-4fae-a900-bb38ff5b3820)
By Foster Fraas
One of the lithium minerals most widespread in the earth's surface is spodumene (Li20-A1203-4Si02), a lithium aluminium silicate. For some time, deposits of this mineral were known to exist in th
Jan 1, 1937
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RI 7327 Stabilization Of Hydraulic Backfill With Portland Cement - Including Results With Other Additives
By Donald R. Corson
The effects of adding varying amounts of type I portland cement to hydraulic backfill are described. Six different fill materials, each with three cement contents, were tested to determine which fill
Jan 1, 1970
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IC 8650 Technology And Use Of Lignite - Proceedings: Bureau Of Mines-University Of North Dakota Symposium, Grand Forks, N. Dak., May 9-10, 1973
Sixteen papers concerned with the technology and utilization of low-rank fossil fuels are presented as the proceedings of the 1973 lignite symposium. This symposium, the seventh in a series of biennia
Jan 1, 1974
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IC 8427 Silver In The United States
By Arcy, D&apos Banister
The productive potential of the Nation's principal active and inactive silver mining districts has been evaluated, using 1964 economic conditions and assumed silver prices ranging up to $3 per ou
Jan 1, 1969
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RI 5998 Electrorefining Of Selected Titanium Ternary Alloys ? Summary
By J. R. Nettle
The development of a process for upgrading offgrade titanium metal by electrorefining in molten salt led to an investigation of the electrotransfer characteristics of selected metals when alloyed with
Jan 1, 1962
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RI 3446 Accidents In The Petroleum Industry Of Oklahoma In 1937, Summarized And Compared With 1923 ? Introduction
By C. F. McCarroll
The effectiveness of an industry's safety activities can be gaged best by the accident records of that industry. In an effort to gage conditions in the petroleum industry, and with the objective
Jan 1, 1939
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OFR-130-82 Bureau Of Mines Practices In Fire Assaying
By W. L. Barry
A review of the practices of analyzing for precious metals at the Reno Research Center, U.S. Bureau of mines, is presented. A general description of fire assaying, the physical layout of a fire assay
Jan 1, 1982
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MLA 17-92 - Mineral Resources Of The Independence Range Special Study Area, Elko County, Nevada
By Steven W. Schmauch
The U.S. Bureau of Hines conducted e mineral resource survey of approximately 232,000 acres in part of the Humboldt National Forest, Nevada, during 1989. About 7S percent of the study area was covered
Jan 1, 1992
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Identification Of Noise Sources On Longwall Panels Using Multiple Time-Synchronized Dosimeters
By E. R. Spencer, D. R. Babich, L. A. Alcorn, A. K. Smith
Noise is one of the most pervasive health hazards in mining. A compilation of Mine Safety and Health Administration (MSHA) noise survey data for fiscal year 1990 shows that approximately 40% of the to
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RI 3210 A Study of the Properties of Texas-New Mexico Polyhalite Pertaining to the Extraction of Potash VII. Effect of Particle Size, Sodium Chloride Concentration, and Temperature upon Hot Extraction by a Multistage Process
By F. Fraas, J. E. Conley
"The problem of recovering potash from the mineral polyhalite (K2SO4.MgSO4.2CaSO4.2H2O), occurring in large quantities in the salt beds of Texas and New Mexico, has been under investigation at the Non
Sep 1, 1933
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RI 8383 Relationship of Mineralogical and Chemical Composition of Refractory Periclases to Modulus of Rupture at 1,500° to 1,600° C
By J. T. McLendon
As part of its research project in developing improved refractory materials for metallurgical applications, the Federal Bureau of Mines obtained hot modulus of rupture data at 1,500°,1,550°, and 1,600
Jan 1, 1979
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RI 3200 Washability Studies of the Blue Creek Bed at the Connellsville Mine, Connellsville, Ala.
By W. G. Payne, A. C. Richardson, B. L. Gandrud
"INTRODUCTION The Connellsville mine of the Yolande Coal & Coke Co. is in the southwestern part of Jefferson County, Ala., about 30 miles southwest of Birmingham. The mine is on the Blue Creek bed, wh
Feb 1, 1933
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OFR-34-88 Development And Testing Of A Variable Wall Miner Breadboard Prototype Unit
By Ronald J. Mathis
The objective of this contract is to design, build, surface test, and evaluate a breadboard prototype of the Variable Wall Mining System so that data are available for the design of a production machi
Jan 1, 1987