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IC 6995 Reconnaissance Of Mining Districts In Humboldt County, Nev. ? Introduction
By William O. Vanderburg
This paper gives the results of a reconnaissance of the mining districts in Humboldt County, Nev., made during the month of June, 19373/. During the field work, virtually all the mining districts in t
Jan 1, 1938
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OFR-37-85 Analysis Of Recharge To An Underground Lead-Zinc Mine, Coeur D'Alene Mining District, Idaho
By Joel A. Hunt
The Bunker Hill Mine, located in north Idaho, consists of over 150 miles of passageways within highly fractured and faulted Precambrian metamorphosed rocks. The Bunker Hill Mine was at one time a majo
Jan 1, 1984
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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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Mineral Indicators - Antimony -
A new mine has begun production of antimony ore and concentrates in Serbia, Yugoslavia. The mine is operated by the mining and metallurgical enterprise "Aajaca." Initial production is running at appro
Jan 1, 1976
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Mineral Indicators - Aluminum: (5c12ea66-3e5c-498f-9e0e-429d4e322050)
U.S. producers for more than 5 months have priced 99.5 percent primary aluminum ingot at 486 per pound. Sales by independent dealers in this same period reportedly declined by 0.5$-2.5$ to 43.50- 44.5
Jan 1, 1977
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Fourth-Quarter 1986 Economic Activity And First-Quarter 1987 Outlook - Fourth Quarter And 1986
By Keith L. Harris
Real2 gross national product (GNP) grew at a seasonally adjusted annual rate of 1.3% in the fourth quarter and at 2.5% for all of 1986, according to the most recent Department of Commerce estimates ta
Jan 1, 1987
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OFR-57(1)-78 Feasibility Studies Of A Bidirectional Auger System And A Machine Mining Plan - Volume I, Bidirectional Auger System
By A. N. Baldwin
This report documents work performed under Bureau of Mines Contract J0265029 to study and develop two innovative mining systems: ? An underground auger capable of augering into the right and left r
Jan 1, 1977
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IC 9182 Human Factors In Mining
By Mark S. Sanders
There is a growing awareness among mining professionals that the human factor plays a significant role in safety and productivity. Since the 1960's, the science of human factors, or ergonomics, h
Jan 1, 1988
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Mineral Indicators - Aluminum (9d52498e-cbaa-467d-bf52-eb03dc09d331)
On November 9, the Reynolds Metals Company cut production by 12 at its primary aluminum smelters at Troutdale, Oreg., and Longview, Wash., as a result of an earlier 25% power cutback by the Bonneville
Jan 1, 1979
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Mineral Indicators - Aluminum (f195aca1-1f29-4192-9a0d-57071e1fa0a7)
The London Metal Exchange began its first official session of aluminum trading on Monday, October 2, LME prices based on 3-month forward contracts opened Monday at 52.4 cents per pound, fell midway th
Jan 1, 1978
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Significant Events In 1986 - National Economic Performance
The U.S. economy continued to expand during 1986, although at the slowest pace since 1982 when the current business expansion began. Real gross national product (GNP) grew about 2.6%, slightly below 1
Jan 1, 1986
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Mineral Indicators - Aluminum (9bb20c36-40a8-40e9-869f-48965cf2a347)
The Aluminum Company of America (Alcoa) announced plans to shut down production at the remaining two potlines at its Point Comfort, Texas primary aluminum smelter due to the increased costs of natural
Jan 1, 1978
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Introduction to Mining
Contributions made by mining have played a much more significant role in the development of civilization than is generally conceded by historians or recognized by ordinary citizens. In modern society,
Jan 1, 2008
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Mineral Commodity Summaries 1978 - An Up-To-Date Summary Of 95 Mineral Commodities ? Aluminum
1. Domestic Production and Use: In 1977, 12 companies operated 31 primary aluminum reduction plants, with 3 firms accounting for 65% of production capacity. Washington, Oregon, and Montana accounted f
Jan 1, 1978
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Mineral Indicators - Aluminum: (8360beb9-cad2-41f6-97b0-42204723aeec)
At the end of August, U.S. producer posting of 99.5 percent unalloyed aluminum had been established at 48¢ per pound. At that time, dealer-quoted unalloyed ingot was reportedly at 44¢-47¢. CADMIUM
Jan 1, 1976
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The Excursion To Hawaii And Japan.
By R. W. Raymond
On the Manchuria. SOMEWHAT fatigued with excess of enjoyment and strenuous continuity of movement on the trip to and through California, the members and guests of the Institute party embarked Tuesday
Jan 1, 1912
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Commodity Data Summaries 1977 - An Up-To-Date Summary Of 95 Mineral Commodities ? Aluminum
Domestic Production and Use: In 1976, 12 companies operated 31 primary aluminum reduction plants, with 3 firms accounting for 63% of production capacity. Washington, Oregon, and Montana accounted for
Jan 1, 1977
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State Mineral Summaries - 1992
The STATE MINERAL SUMMARIES publication provides estimated data and summaries of mineral activities at the State level for 1991. Most of the estimates are based on nine months data. Individual State s
Jan 1, 1992
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OFR-5-78 Humidity Effects On Coal Mine Roof Stability
By N. B. Aughenbaugh
This report summarizes the results of an investigation into the causes of coal mine roof instability caused by the environmental characteristics of the air ventilated through a mine. The field studies
Jan 1, 1976
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IC 6787 Placer Mining In The Western United States - Part II. Hydraulicking, Treatment Of Placer Concentrates, And Marketing Of Gold ? Introduction
By E. D. Gardner
This paper is the second of a series of three on placer mining in the western United States. The first paper4 discusses the history of placer mining in the Western States and the production of placer
Jan 1, 1934