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Mine Ventilation at Kiruna
By Lennart Mukka
The Kiruna Mine in Sweden currently has three ventilation systems. The first two (a new and old system) serve the production areas. The third system is used for the facilities on the former main hau
Jan 1, 2002
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Hollow Core Bar Micropiles - Design Parameters Interpreted From 404 Load Tests
By Jesús E. Gómez
This work is a continuation of a paper presented in the 32nd DFI Annual Conference, Colorado 2007, titled ?Hollow Core Bar Micropiles - Design parameters interpreted from 260 load tests.? The first pa
Jan 1, 2008
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Application of aeromagnetic data to gold exploration in northeastern Ontario
By Raymond J. Pichette
"Aeromagnetic data can be useful in helping to delineate structures and rock types in gold exploration. Magnetic anomalies associated with Archean volcanic belts in northeastern Ontario can be quickly
Jan 1, 1982
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Effect of ladle additions on chemical composition of metallurgical-grade silicon
By R. M. Cooper, H. K. Herbert, D. N. Phillips
A study was carried out to determine the effects of adding CaCO3, Fe, Al and CaSi2 to the ladle, rather than to the raw materials, in order to increase the concentration of Ca, Fe and Al in the final
Jun 19, 1905
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Importance of Stone in Industry
By Oliver Bowles
ROCK is no doubt the most abundant of all material things because the planet on which we live is made of it. All animal and vegetable organisms and the multitude of natural and manufactured products t
Jan 1, 1934
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Government Actions And The Mineral Industry (258f39ae-c1a2-4cc1-9367-34f38d87beb5)
Duty on Lead Reduced. -On December 28, the President signed H.R. 5047 which reduces the duty on unwrought lead from 3.5% ad valorem to 3% ad valorem, with a floor level of 1.0625 cents per pound, effe
Jan 1, 1980
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Information Technology Aids Soda Springs Phosphate Mine
By Randy Vranes
Sophisticated information technology, quality management systems and a commitment to the environment has allowed Solutia’s Soda Springs phosphate mine and elemental phosphorus plant to reduce operatin
Jan 1, 1999
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Replacement of Diatomaceous Earth Filter Aid with Alpha-Cellulose at the Laronde Refinery
By François Robichaud
"The Laronde mill has been in operation since 1988. Actual milling rate ranges from 7,000 to 8,500 mtpd. Laronde uses SAG/ball mill grinding followed by copper and zinc flotation circuits. A cyanidati
Jan 1, 2007
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SAG or HPGR? – The Current Dilemma
By Paul Staples, Chris Morley
"The development of the Cerro Verde, Amplats Mogalakwena and Boddington projects over the last few years has helped to establish the use of high pressure grinding rolls (HPGR) in comminution circuit d
Jan 1, 2010
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RI 3057 Processes for Extracting Radium from Carnotite
By H. A. Doerner
"The following report is submitted, in compliance with the request made by the Honorable W. H. Sproule, Chairman of the Committee on Mines and Mining, to the Director of the United States Bureau of Mi
Dec 1, 1930
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Computer Control of the Flotation Process at Clarabelle Mill
By D. F. Cooper, J. G. Paterson, K. H. Pang
"Effective control of metallurgy by manual adjustment of cell levels is common flotation practice. With an on-stream XRF analyzer interfaced to a process control computer it is possible to program the
Jan 1, 1973
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Effect of Quenching Rate on Age Hardening in an Al-Zn-Mg Alloy Sheet
By Hidenori Hatta, Takero Watanabe, Hideo Yoshida
"The effect of the quenching rate on age hardening in an Al-6.0mass%Zn-0.75mass%Mg alloy sheet was investigated. The quenching rates and aging conditions were as follows: water quenching (WQ) or furna
Jan 1, 2018
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Lake Cowal Foundation- Environmental and Community Sustainability Beyond the Mine Fence
By D Johnston
Within the first full year of BarrickÆs Cowal Gold Mine operation, the Lake Cowal Foundation Limited (LCF) has already been delivering results consistent with its goal to protect and enhance the natur
Jan 1, 2007
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Some Observations on Metamorphism at Broken Hill, N.S.W.
The Archaeozoic Willyama Complex at Broken Hill has suffered several periods of deformation and metamorphism. New structural and petrological information together with that available from the literatu
Jan 1, 1963
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Precious-metal-bearing Volcanogenic Massive Sulfide Deposits, Campo Morado, Guerrero, Mexico
By Mark Rebagliati, John Payne, Jim Oliver
Abstract-The Campo Morado precious-metal-bearing, volcanogenic massive sulfide deposits occur in a lower Cretaceous, bimodal, calc-alkaline volcanic sequence in a major northerly trending belt in the
Jan 1, 1997
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Precious-metal-bearing Volcanogenic Massive Sulfide Deposits, Campo Morado, Guerrero,Mexico (63b48013-4318-466b-b2d9-966e31151f49)
By Mark Rebagliati, John Payne, Jim Oliver
The Campo Morado precious-metal-bearing, volcanogenic massive sul?de deposits occurin a lower Cretaceous, bimodal, calc-alkaline volcanic sequence in a major northerly trending belt inthe Guerrero Ter
Jan 1, 1997
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The Use of Tomographic Imaging in Mineral Exploration
By A. Fawcett, B. C. Dyer
Abstract - The basis of the tomographic velocity imaging technique is briefly described and an application of the method to detect and image a cross-section through a chromite pod is presented. Using
Jan 1, 1994
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A Case Study Supporting The Need For A Rational Method For Design And Installation Of Vibratory Driven Piles
By Franklin M. Grynkewicz
The subject of bearing pile performance installed by vibratory hammers has been a matter of increasing study and continued controversy. A recent case study from a major bridge replacement project is d
Jan 1, 1991
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RETC 2009 Full Proceedings - RETC2009
By Bill Mariucci, Gary Almeraris
All Rights Reserved. Printed in the United States of America. Information contained in this work has been obtained by SME, Inc. from sources believed to be reliable. However, neither SME nor its autho
Dec 1, 2009
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OFR-74-75 Economic Engineering Analysis Of U.S. Surface Coal Mines And Effective Land Reclamation ? Executive Summary
Fossil fuel consumption in the United States increased markedly over recent years, and future demands expect to be even greater. Coal, this Nation's most plentiful natural fossil fuel, will play
Jan 1, 1975