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RI 3901 Gasification of Lignite & Subbituminous Coal for 1944By E. C. Yeager, E. O. Wagner, A. W. Koth, V. F. Parry, J. B. Goodman, D. G. Gernes, W. L. Patty
"In July 1943, the Bureau of Nines received an appropriation to investigate the beneficiation of Minnesota iron ores through the use of lignite. The broad objective was to find a way to link the large
Jun 1, 1946
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Mineral Indicators - Aluminum: (34aea1b0-8707-476d-a608-b15875f18c04)During the period January 1, 1977 through July 31, 1977, 5 percent (264,000 tons) of U.S. capacity was closed due to power curtailments in the Pacific Northwest because of the shortage of water. Durin
Jan 1, 1977
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Construction Methods, Cushman Tunnel No. 2By F. E. ROGERS
CUSHMAN TUNNEL No. 2 is adjacent to the Hood Canal, near potlatch, Wash. It is 17 ft. inside .diameter, about 13,000 ft., or two and one- half, miles in length, and is a part of the second unit of the
Jan 1, 1931
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The Ecstall Story: The Ecstall ConcentratorBy Michael P. Amsden
"THE ECSTALL CONCENTRATOR is situated adjacent to Highway 101 and the Ontario Northland Railroad, 15 miles east of Timmins, Ontario. Ore is delivered to the concentrator by rail from the mine, which i
Jan 1, 1974
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OFR-12-84 Survey Of Ground Surface Conditions Affecting Structural Response To SubsidenceBy R. W. Bruhn
The objective of the study is to examine the apparent influence of soil and near surface rock strata on the severity of damage experienced by surface structures subjected to mine subsidence. The repor
Jan 1, 1983
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Blockchain Technology and Mining Industry: A Review - Mining, Metallurgy & Exploration (2023)By Ankit Jha, Javad Sattarvand, Aaron Young
Blockchains are one of the prominent disruptive technologies that are being implemented in several disciplines. The application of blockchains in the mining and mineral industry can provide utility fo
Nov 23, 2023
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Mineral Commodity Summaries 1991 - Significant Events In 1990The value of processed materials of mineral origin was estimated to have exceeded $310 billion in 1990. U.S. raw nonfuel minerals mine production in 1990 was estimated at $33 billion, a 3.1 % increase
Jan 1, 1991
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Strong ground motion and site response of mine-induced seismic eventsBy S. K. Murphy, S. M. Spottiswoode, A. M. Milev, D. Geyser
A portable, stand-alone instrument especially designed for recording strong ground motion was used in this study to create a large database of peak particle velocities measured underground. A total nu
Jan 1, 2003
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History And Geology Of Ancient Gold-Fields In Turkey.By Leon Dominian
(Wilkes-Barre Meeting, June, 1911.) I. INTRODUCTION. THE lack of Aryan roots for the names of metals commonly known among the Aryan settlers of Asia Minor, as well as the later colonizers of Europe,
Nov 1, 1911
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State Compensatory Provisions For Occupational Diseases - IntroductionResearchers, medical organizations, statisticians, and others often use data on the nature and rate of occurrence of occupational diseases in directing their efforts and plans. Very often this informa
Jan 1, 1967
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List of BOM Publications and Articles 1980-01-01 to 1984-12-31 with Subject and Author Index - Special PubliocationBy Branch of Editorial Services
"The Bureau of Mines was established in the public interest to conduct inquiries and scientific and technologic investigations concerning mining and the preparation, treatment, and utilization of mine
Jan 1, 1985
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The National Economy, Raw Nonfuel Minerals, And Processed Mineral Materials - National Economic StatisticsBy Edward E. Johnson
The U.S. economy made significant progress in 1984. The current-dollar gross national product (GNP), the market value of the Nation's output of goods and services, increased almost 11 percent ove
Jan 1, 1985
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OFR-115(1)-76 Technical And Economic Study Of The Modified In Situ Process For Oil Shale - Vol. I Investigation And ResultsBy James L. Ash
This report contains the results of a technical and economic evaluation of conceptual systems for the underground mining, rubblization, and in situ retorting of deep oil shale deposits. Study efforts
Jan 1, 1976
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Project and Mining GeologyBy Donald A. Ranta
Every mineral project or mine is based on a geologic entity-an ore (mineral) deposit. A well-defined mineral deposit and its associated geologic characteristics are the only aspects of a project that
Jan 1, 2008
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Co-Site Microscopy - Combining Reflected Light Microscopy and Scanning Electron Microscopy to Perform Ore MineralogyBy S Paciornik
Computer-controlled microscopes with digital image acquisition and analysis led to the creation of the new field of digital microscopy. These techniques not only allow a certain degree of automation b
Jan 1, 2008
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Traitement d'une magnétite titanifère pour produire la fonte, le pentoxyde de vanadium et le rutile synthétiqueBy Ivan Malinsky, Gérard Castonguay
"On a développé un procédé qui donne une fonte (2,3% C, 0,07% V) du V2O5 (99%) et un rutile synthétique (94% TiO2) à partir d'un minerai, dont les réserves au Québec sont importantes. Le procédé
Jan 1, 1983
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OFR-21-85 Conservation And Substitution Technology For Critical Metals In Bearings And Related Components For Industrial Equipment And Opportunities For Improved Bearing Performance - IntroductionBy Allen G. Gray
It's not news to you that the United States is highly vulnerable to potential problems in supply of critical and strategic metals, and that these metals - chromium, for example - are employed in
Jan 1, 1984
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The Production of Castings in Permanent MoldsBy G. M. Carr-Harris
"THE SUBJECT of permanent molding has received a great deal of attention in the technical press as illustrated by the many excellent articles in the bibliography which follows. In general, this covers
Jan 1, 1960
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Mineral Commodity Summaries 1994 - Significant Events, Trends, And Issues - The U.S. Mineral And Material IndustryThe domestic mineral and material industry grew in some key sectors and declined in others during 1993; overall, the industry was poised at yearend for stronger growth in 1994. Metals production is ex
Jan 1, 1994
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Presidential Address: Truth and Error in Scientific PublishingBy R. T. Jones
"SynopsisScientific progress relies on the publication of ideas and experimental results that can be replicated, tested, and improved over time. The first printed book on metallurgy to have been publi
Jan 1, 2015