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Presidential Address: The Mechanisation Of UG2 Mining In The Bushveld Complex
By F. M. G. Egerton
Mechanisation of mining operations is not a new concept in the world of mining. Machinery has been developed, manufactured and used for many decades in massive orebodies and coal mines, both locally a
Jan 1, 2004
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Mechanical Mining: The State Of The Art (c03fcc45-2470-4064-ab30-327f1c5b2089)
By L. Gertsch, R. Gertsch
Mechanical mining is steadily gaining usage in the mining industry. A variety of machines currently finds employment: tunnel boring machines, roadheaders, continuous miners, surface miners, and auger
Jan 1, 2001
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Analysis of the Cold-rolling Texture of Iron
By Charles S. Barrett
NUMEROUS determinations1-7 of the tex-ture of cold-rolled polycrystalline iron, steel, and ferritic alloys have been made with good agreement among the various observers as to the principal features o
Jan 1, 1940
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Kaolin and paper : Quality of both products will improve with more sophisticated printing techniques
By Kenneth J. Hartman
Introduction The term kaolin is derived from kauling, a Chinese word meaning high ridge. This was the name of a hill in China where kaolin was first mined several hundred years ago (Murray, 1976). Ot
Jan 4, 1987
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Selective Leaching Of Phases Occurring In Charge Chrome
By A. Wedepohl
Selective leaching of phases in charge chrome is used in a variety of industrial processes for the production of chromium chemicals. A mineralogical study was made of a range of local charge chrome sa
Jan 1, 2000
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Deformation Behaviour Of Rocks Under Compression And Direct Tension
By X. Yu
Although many investigations of the deformation behaviour of rocks have been carried out, most of them are carried out in compression. In all rock engineering practice it is usually assumed that the d
Jan 1, 2005
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Sydvaranger Magnetite Mine, Norway - Owner Mining Tenders and Implementation
Northern Iron Ltd (NIL) is an Australian listed company that recently brought the historic Sydvaranger open pit Magnetite Mine (the Project) in Northern Norway successfully back into production. NIL m
May 1, 2010
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Jabali / Yanbu – A New Source Of Zinc In The Middle East (fe9d2734-cc3c-4ef2-b8ec-54ed953ef19a)
By K. M. Stone, N. J. G. Masson, A. C. Woollett
The Jabali zinc deposit, in Yemen, contains at least 9.4 Mt at a grade of 10.7% zinc, 2.2% lead and 77g/t silver. The zinc occurs as smithsonite with minor hydrozincite. The Jabali ore does not produc
Jan 1, 2002
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Establishing Geotechnical Baseline Values for Deep Soft Ground Tunnels
By John E. Newby
The Brightwater Conveyance System consists of four tunnel segments in three tunnel con-tracts, comprising over 21,760 m (71,400 ft) of pressurized face tunneling in complex glacial and non-glacial sof
Jan 1, 2008
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Beyond Mine-to-Mill - Circuit Design for Energy Efficient Resource Utilisation
By A R. Bye
Energy comes at great cost to our world and societies and therefore we should use it wisely and optimally. Societal pressure is enforcing this and the industry must respond by being proactive.The mine
Jan 1, 2009
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Mining 1988
By J. D. Morgan
The US economy continued to grow steadily in 1988, reaching an annual rate of $5 trillion in the last quarter (US trillion = 1012). The value of domestically processed mineral-based materi¬als rose 20
Jan 1, 1989
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Minipiles And Jet-Grouting: A Strong Foundation In Parma, Italy
By Bruno Gemmi
The objective of the ? 200 million ($280 million) project Parma Railways Station-Urban Transformation was the reconnection of the North and South parts of the town by constructing an 80 m (250 ft) wid
Jan 1, 2011
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Stillwater Mining Company's Pt-Pd Flotation Mill
By Gregg J. Hodges
The Stillwater pt-pd mine and flotation mill are located about 130 km (80 miles) southwest of Billings in Stillwater county, M6ntana~ The pt-pd ore zone stretches about 43 km (27 miles), but varies in
Jan 1, 1988
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Biosorption Removal of Aluminum Species from Wastewaters Streams
By Javier Enrique Basurco Cayllahua
In this work, a gram-positive bacteria was used as biosorbent to elucidate the aluminum load capacity under different conditions related to metallurgical and chemical plants. The sorption data followe
Jan 1, 2009
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Stratigraphic and Structural Constraints on Limestone Exploration: A Case Study from Northern New Brunswick, Canada
By I. Dimitrov, S. R. McCutcheon
"Industrial-grade limestone is found in both the Lower Silurian La Vieille Formation and Upper Silurian LaPlante Formation of the Chaleurs Group in northern New Brunswick. Currently, between 150 000 a
Jan 1, 2007
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Far Southeast-Lepanto Porphyry-Epithermal Cu-Au Deposits, Philippines: Coupled Hydrothermal Processes Between the Porphyry and High-Sulphidation Environments
The spatial and temporal evolution from the porphyry to high-sulphidation epithermal environment can be assessed by integrating new results on such deposits (Arribas et al, 1995; Hedenquist et al, 199
Jan 1, 1999
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Effects of Solids Loading on Cyanidation Rates
By Ralph Harris, Qi Xia
"Gold cyanidation rates are known to be limited by the rate of oxygen dissolution in the cyanidation tanks. The effect of solids loading on the oxygen dissolution rates is not obvious and the results
Jan 1, 1997
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Structures and Field Relations of Epidiorite Dykes in the Broken Hill Orebody
A study of literature on the epidiorite dykes which transgress the Broken Hill lode and its wall rocks reveals a considerable diversity of thought regarding the time of emplacement of such dykes. In t
Jan 1, 1968
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Lessons Learned From Installation Of ACIP Piles In Various Geologic Settings Of The NYC Region
By Frank J. Arland
Augered-Cast-in-Place piles have been used successfully for many deep foundation applications. The four case studies discussed herein describe ACIP pile projects where problems developed during ACIP p
Jan 1, 2004
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Framework for optimizing components in an oilwell cement slurry design
By D. Getzlaf
"Oilfield cementing has been utilized in the industry since the turn of the century. Originally, wells were shallow and criteria for well integrity were somewhat limited. Since that time, wells have s
Jan 1, 2004