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IC 9415 Network Flow Model Analysis Of The Impact Of Chlorofluorocarbon Phaseout On Acid-Grade Fluorspar
By Jennifer A. Slatnick
Chlorofluorocarbons (CFC's), once universally accepted as ideal compounds for use in cooling and refrigeration, in foam production, and in cleaning electronic components, are being phased out and
Jan 1, 1994
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Industrial Minerals - Resources and Utilization of North Carolina Pyrophyllite
By Jasper L. Stuckey
PYROPHYLLITE, first identified as soapstone,' later as agalmatolite,2 and finally as pyrophyl-lite, has been known to occur in North Carolina for more than 130 years and has been produced intermi
Jan 1, 1959
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Coal-Mine Accidents In The United States 1938 - Introduction
By W. W. Adams
Every man-hour of work performed in and about the coal mines of the United States had a 2-percent heavier death load from accidents in 1938 than in 1937. This is an unorthodox way of stating that the
Jan 1, 1941
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RI 4776 The Oil-Shale Industries Of Europe
By Boyd Guthrie
As the American petroleum industry surveyed its position in early 1937, it had many reasons to be optimistic concerning its future. The industry had emerged successfully from the depression, and for t
Jan 1, 1951
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RI 6211 Physical And Chemical Properties Of Some Pacific Northwest Halloysitic Clays
By Hal J. Kelly
A number of problems that developed in processing the halloysitic clays of eastern Washington and northern Idaho were investigated by the Bureau of Mines. The deflocculating effect of tetra sodium pyr
Jan 1, 1963
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The Need to Recycle Zinc: A Consideration of Public Perception, Politics and Competitiveness
By D. R. Parker
"This paper canvasses emerging trends in public policy and law, which may influence the zinc industry's interest in recycling. There are forces at work beyond direct economic benefits that will drive
Jan 1, 2000
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IC 6418 Men and Mines
By Scott Turner
Many of you radio listeners have probably never seen a mine . You may be glad of it, but you should not forget that there is a vast army of men in this country who not only have to see mines , but hav
Dec 1, 1930
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A Set Of Indices Based On Indentation Tests For Assessment Of Rock Cutting Performance And Rock Properties
By H. Copur
Experimental studies for quantification of force and brittleness indices relevant to rock cutting performance are presented. A simple interpretation method is developed, which quantifies the force-pen
Jan 1, 2003
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MLA 6-90 - Minerals In The East Mojave National Scenic Area, California: A Minerals Investigation - Volume I
In 1990, the Bureau of Mines (BOM) conducted a mineral investigation of the mines and prospects in the East Mojave National Scenic Area (EMNSA), San Bernardino County, California During field work, BO
Jan 1, 1990
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Permian and Mesozoic Tectonic and Structural Events in the Bowen and Surat Basins and New England Orogen, Southwest Pacific Rim
By J M. Totterdell
The Permian-Triassic Bowen Basin and the Jurassic-Cretaceous Surat Basin evolved in a backarc tectonic setting behind an active convergent plate margin in eastern Gondwana. Several extensional (Early
Jan 1, 1995
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Institute of Metals Division - Microstructure of Iron-Sulfur Alloys
By Lawrence H. Van Vlack, Alfred S. Keh
The distribution of sulfur in iron was found to be dependent upon the time and temperature of the treatment as well as the chemical composition of the sulfide. With higher temperatures, the sulfide ph
Jan 1, 1957
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OFR-48-78 Roof Bolting Hazard Analysis Study
By J. H. Adkins
The purpose of this research is to identify hazards associated with roof bolting and to make recommendations for procedural and equipment design changes to reduce those hazards. To that end, the proje
Jan 1, 1977
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The Influence of Minerals on Canadian History and Development
By Charles Camsell
Few persons ever stop to consider how vital an influence minerals, and especially metals, have had upon human history, how they have affected the every-day life of the individual or how at different p
Jan 1, 1926
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Processing Plant Expansion at Kittila Mine Affords Opportunity for Significant Material Handling Improvement
By T. Holmes, J. Middlemiss
"Agnico-Eagle (AE) has been operating their Kittila Mine in Northern Finland since 2008. The mine has experienced considerable ore flow problems with ratholing, bridging and freezing in their mill fee
Jan 1, 2017
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Support Communities - The Human Factor In Resource Development
By Robert W. Yokom
As the search for new sources of energy and minerals leads to more remote areas of the country - and the world - the need to plan for adequate housing and community facilities for the construction and
Jan 1, 1981
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OFR-17(2)-77 Conceptual Design Of An Automated Longwall Mining System - Phase II - State Of The Art Survey
To develop a conceptual design for an automated longwall mining system, one should know what has been done, what is being done today and what is being planned for tomorrow. The bibliography referenced
Jan 1, 1975
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Correlation Of Vertical Magnetic Surveying To The Alabama Piedmont Geology
By Thornton L. Neathery
Vertical magnetic surveys have been made over about 3, 150 miles of the crystalline area of east-central Alabama. A contour map (100-gamma interval) showing regional magnetic anomalies has been prepar
Jan 1, 1972
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Prospecting for Fine Gold Using a Paper Chromatographic Method
By Lever R. R
The paper discusses assay methods generally used when prospecting for gold, and also the applicability of various chemical methods, it describes a new paper chromatographic technique.for making fairly
Jan 1, 1959
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Subject Index to Bureau of Mines Publications from July 1, 1990 to January 1, 1960 - Subject Index M-P
"M bed, Matanuska valley, Alaska, coal carbonizingproperties B 510M spectral lines, low-energy, study RI 5538Mab shaft, Leadvile district, Colo., investigation RI .1518Maberry process, for aluminum c
Jan 1, 1960
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Introduction (47068ab7-53dd-4378-bd75-16215c2111b8)
Although not immune from the problems affecting the U.S. economy generally, the mineral industry in 1991 contributed nearly $300 billion in the value of processed materials of mineral origin. Supporti
Jan 1, 1992