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Mining In The Spruce Pine, North Carolina AreaBy Charles A. Hickey
The dining industry game tome Spruce Pine area a few years after tine Civil War. Two Yankees came down from Massachusetts to mine sheet mica to sell to the stove manufacturers for windows in heating s
Jan 1, 1962
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Allflux® Separator/A New Way To Process Your Heavy MineralsBy P. Grotjohann
In processing heavy mineral sands, the low feed concentration and respective high value of the desired minerals require high capacity production and sharp classification/separation techniques to reduc
Jan 1, 1998
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Gold Exploration: Flow-Through Financing and the Canadian JuniorBy Harold D. Stevenson, Gerald G. Carlson
The Flow-Through Shares Program was set up by the Canadian Federal Government in 1978. While initial annual expenditures in flow-through shares was small, recognition of flow-through as a significant
Jan 1, 1987
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Detoxification Of Gold Mill Waste Water With H2O2: Three Case StudiesBy A. Griffiths
The? use of hydrogen peroxide to detoxify gold mill waste waters containing cyanide and other toxic substances is already an established technology. Recent advances have extended the range of applicat
Jan 1, 1988
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Improvements In Resource Recovery At Stauffer's Big Island MineBy J. F. T. Agapito
Significant increases in extraction ratio on the order of six to eight percent, equivalent to as much as 142 t/m of panel advance, have occurred at the Big Island Mine during the last five years with
Jan 1, 1988
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Primary Autogenous Grinding Concentrators Recent Trends And DevelopmentsBy A. A. Dor
Recent developments in the design of concentration plants have reflected the increased recognition that has been given to the economic and metallurgical advantages of autogenous grinding. This has man
Jan 1, 1965
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Control of Coal Worker's Pneumoconiosis: An Assessment of Progress and NeedsBy Raja V. Ramani
Worldwide, promulgation and enforcement of health and safety laws and regulations have been the primary means of ensuring minimum and uniform standards of health and safety in the mining industry. In
Jan 1, 1997
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Waste Water Treatment Plant for Sewage Water in the Sharrcem PlantBy John Mastoris, Shkurta Gashi, Kostis Dragasakis, Kostas Kouklidis, Halil Berisha
Water is increasingly recognized as a critical issue for sustainable development, becoming as important as carbon to corporate responsibility and reputation. Although the cement industry’s overall ‘wa
Jan 1, 2017
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Mining Industry Feels Effects of General RecessionBy Donald E. Ralston, V. Rajaram, Michael N. Greeley, John W. Peters, Terry J. Laverty, F. S. Kendorski, Peter G. Chamberlain, J. Brent Hiskey, William C. Larson
Preliminary figures from the US Mine Safety and Health Administration show 801 underground metal mines and 490 surface metal mines, at the end of 1981, up from 663 and 383, respectively, in 1980.
Jan 5, 1982
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A Geologic Summary Of Significant Lode Gold Systems In MontanaBy J. F. Childs
Montana consists of an Archean crystalline basement overlain by Proterozoic through Cenozoic sedimentary rocks. Igneous rocks range in age from Archean to Pleistocene; the most voluminous magmatism an
Jan 1, 1993
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Coal 1992Overview In 1992, US coal supply and demand were shaped more by weather conditions and the export market than by the economic recovery. Preliminary data compiled by the Energy Information Administrat
Jan 1, 1993
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Managing Heat in Underground Mines: the Importance of Incorporating the Thermal Flywheel Effect into Climatic Modeling " Mining, Metallurgy & Exploration (2021)"By Karoly C. Kocsis, Kyle A. Scalise, Marcelo Bandeira Teixeira
Understanding the effects of various ventilation and climatic parameters on the work conditions and comfort in underground mines is critical for efficient ventilation system design and cost savings an
Oct 9, 2020
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Medusa's Reclamation Programs In Three StatesBy R. D. Shackleton
Medusa Cement Company, a division of Medusa Corporation, is a medium-sized cement manufacturer serving the midwest, east, and southeast. Medusa's eight plants are located in Georgia, Pennsylvania
Jan 1, 1974
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Contractor’s Redesign of Construction Methods and Proceduresfor New York City Transit Authority Contract C-20201By Bernard A. Grand, Gary A. Almeraris
This project involves the reconstruction of a 1,100 ft. long by 75 ft. wide segment of an existing 4 to 5 track subway under Northern Boulevard in the Borough of Queens in New York City. The project i
Jan 1, 1999
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Ground Freezing for Deep Shaft Excavation Shaft 18B-1 New York City Water Tunnel No. 3 New York, New York - NAT2024By Andrew Chegwidden, Tara Wilk
Shaft 18B-1 is the second shaft to be constructed as a part of contract C547A along the New York City water supply system Tunnel No. 3. More complex than Shaft 17B-1, this site has an additional 30 m
Jun 23, 2024
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Minerals and the Developing Economies (fafba686-ef20-48a4-ae2a-b2a91cf994fa)By William S. Pintz, William A. Vogely, Charles J. Johnson
This chapter on the role of minerals in developing economies is oriented toward economic policy issues. The discussion and analysis cut across the technical, economic, legal, and policy fields. The go
Jan 1, 1985
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Fluidized Bed Retorting Of Oil ShaleBy Rex T. Ellington
The fluidized bed is an effective method for investigating retorting phenomena and possibly a commercial means of retorting oil shale. Both were examined by Sinclair Oil Corp. (now part of Atlantic Ri
Jan 1, 1972
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Mining Of Medium Hard Rock Without Blasting By Means Of Cutting. Experiences And Economics Of The Wirtgen Surface MinerBy B. Schimm
Improve the mines productivity by simplifying the mining process, for these tasks the Wirtgen Surface Miner offers an attractive alternative. Surface Miners cut, crush and load material in one opera
Jan 1, 1997
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Copper Electrowinning At Present And In The FutureSolvent extraction-electro- winning appears to be one of the most important processes for the future in the North American copper industry and for this reason both the SX and EW steps are furtive area
Jan 1, 1985
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Mining And The Environment: Finding Common GroundBy Jim Dunn
For decades many of us who are associated with the mineral industry have tried to show the public its economic and strategic importance. Some of the mineral industry's proponents have been politi
Jan 1, 1987