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Bureau Of Mines Mineral Investigations In The Juneau Mining District, Alaska, 1984-1988 - Volume 2.- Detailed Mine, Prospect, And Mineral Occurrence Descriptions - Section C - West Lynn Canal Subarea - Introduction - Location, Access And Land Status
By Albert H. Clough
The West Lynn Canal subarea of the Juneau Mining District (JMD) is defined by Lynn Canal on the east, Davidson Glacier to the north, Icy Strait to the south and the Glacier Bay National Park Boundary
Jan 1, 2012
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OFR-67(2)-75 Characterization Of The Structural Behavior Of Rock Masses - Appendix C - An Alternative Structural Model For The Characterization Of Rock Masses Volume II ? 1. Introduction ? 1.1 General
By L. R. Herrmann
The most fundamental feature of fracture is that it involves separation. Such separation can arise by either separation of molecules, more or less along the line joining their centers (tension), or by
Jan 1, 2012
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Minerals In The U.S. Economy: Ten-Year Supply-Demand Profiles For Mineral And Fuel Commodities (1966-75) - U.S. Minerals Supply/Demand Flow Diagrams And Tables
The accompanying supply/demand flow diagrams and 10-year tables for mineral and fuel commodities present essential data required by government, industry, and others to formulate policies and programs
Jan 1, 2012
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OFR-55-76 Spatial Graphs Of Anisotropic Elastic Properties For The Various Symmetry Systems
By Thomas R. Bur
The patterns of variation of the 21 anisotropic elastic constants with direction arc presented for all of the symmetry systems that are normally expected to occur in rocks and in the constituent miner
Jan 1, 2012
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Minerals In The U.S. Economy: Ten-Year Supply-Demand Profiles For Mineral And Fuel Commodities (1965-74)
The accompanying supply/demand flow diagrams and 10-year tables for mineral and fuel commodities present essential data required by government, industry, and others to formulate policies and programs
Jan 1, 2012
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Bureau Of Mines Mineral Investigations In The Juneau Mining District, Alaska, 1984-1988 - Volume 2.- Detailed Mine, Prospect, And Mineral Occurrence Descriptions - Section B - Glacier Bay Subarea ? Introduction
By Jan C. Still
The Glacier Bay subarea is that part of the Juneau Mining District (JMD) within Glacier Bay National Park and Preserve (GBNP). It is the western portion of the JMD and consists of the land between the
Jan 1, 2012
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Bureau Of Mines Mineral Investigations In The Juneau Mining District, Alaska, 1984-1988 - Volume 2.- Detailed Mine, Prospect, And Mineral Occurrence Descriptions - Section A - Haines-Klukwan-Porcupine Subarea ? Introduction
By Jan C. Still
The Haines-Klukwan-Porcupine subarea of the Juneau Mining District (JMD) is located in the northern portion of the JMD and consists of the land between the Alaska-British Columbia boundary, the Chilko
Jan 1, 2012
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OFR-103(1)-75 Circuit Breaker Development And Application - USBM Contract Phase I Report - Section 1. Program Objectives And Results - 1. 1 Background
By D. A. Paice
Direct current electrical systems are used in most coal mines primarily to power the main haulage trains and secondarily to feed other equipment and passageway lighting. Electrical power is supplied f
Jan 1, 2012
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Bureau Of Mines Mineral Investigations In The Juneau Mining District, Alaska, 1984-1988 - Volume 2.- Detailed Mine, Prospect, And Mineral Occurrence Descriptions - Section D - Juneau Gold Belt Subarea ? Introduction ? Location
By Earl C. Redman
The Juneau Gold Belt, centered on Juneau and approximately 120 miles long by 10 miles wide, stretches from Berners Bay on the north to Windham Bay on the south (fig. D-l). Access within the Juneau Gol
Jan 1, 2012
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OFR-28-72 Systems Analysis Of An Inherently Explosion-Proof Coal Mining Operation
The inherently explosion-proof mine (EPM) concept is based upon the non-flammability of certain combustible-oxidant-inert gas mixtures, and the effect of partial pressure of gases on physiological rea
Jan 1, 2012
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OFR-86-95 The Magnitude 5.3 Seismic Event And Collapse At The Solvay Trona Mine: Analysis Of Pillar/Floor Failure Stability - Acknowledgments
By Peter L. Swanson
This investigation, which began 90 minutes after the February 3, 1995, seismic event, has benefitted from the assistance of a large number of individuals. These individuals provided information, data,
Jan 1, 2011
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OFR-43-88 Results Of 1987 Bureau Of Mines Investigations In The Valdez Creek Mining District, Alaska
By Joseph M. Kurtak
The Bureau of Mines is currently conducting a four year mineral assessment of the 5.7 million acre Valdez Creek Mining District in Southcentral Alaska, as part of its ongoing statewide mining district
Jan 1, 2011
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OFR-36-90 Analysis Of Balboa Bay, Beluga, Point Mackenzie, And Lost River As Port Sites For Use By The Mineral Industry
By Gary E. Sherman
To aid the U.S. Army Corps of Engineers in their Resource Development Navigation Study, the U.S. Bureau of Mines (Bureau) examined the potential for mineral development near ten Alaska port sites. Thi
Jan 1, 2011
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OFR-19-90 Rare-Earth Element- And Yttrium-Bearing Pegmatite Dikes Near Dora Bay, Southern Prince Of Wales Island
By James C. Barker
Yttrium and rare-earth element. pegmatite dikes are associated with a peralkaline granitic and nephelene syenite complex near Dora Bay on southern Prince of Wales Island. Mineralized dikes were mapped
Jan 1, 2011
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OFR-89-92 Submarine Disposal Of Mill Tailings From On-Land Sources - An Overview And Bibliography - An Overview And Bibliographic Compilation Of References On The Biological, Chemical, Environmental, And Technical Aspects
By Roger L. Baer
Marine disposal of mill tailings has been practiced worldwide for over a century. However, only recently have the environmental effects of marine disposal been systematically studied. Some early attem
Jan 1, 2011
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OFR-33-89 Columbium- And Rare-Earth Element-Bearing Deposits At Bokan Mountain, Southeast Alaska
By J. Dean Warner
From 1984 through 1987, the Bureau of Mines investigated numerous prospects and new discoveries of columbium, rare-earth elements (REE), uranium, zirconium, and other metals associated with the multi-
Jan 1, 2011
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OFR-115(1)-78 Study Of Mine Fires And Mine Ventilation - Part I - Computer Simulation Of Ventilation Systems Under The Influence Of Mine Fires - Summary
By Rudolf E. Greuer
The existing computer programs for the simulation of ventilation systems under normal ventilation conditions are reviewed and a suitable program for including the influence of mine fires is selected.
Jan 1, 2011
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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-34-90 Geochemical Sampling Results From Bureau Of Mines Investigations In The Valdez Creek Mining District, Alaska
By Michael D. Balen
The Bureau of Mines (Bureau), in cooperation with the Alaska Division of Geological and Geophysical Surveys (ADGGS), conducted field investigations from 1987 through 1989 in the 5.7 million-acre Valde
Jan 1, 2011
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OFR-194-84 Minerals Availability Commodity Directory on Cobalt
By William L. Rice
This Bureau of Mines Open Pile Report on cobalt is one of a series of minerals availability commodity deposit abstracts. Nonconfidential information from the Minerals Availability Program data base co
Jan 1, 2011