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Structure and Sedimentation in the Western Coalfield of New South Wales
The stratigraphy of the Western Coalfield is briefly reviewed and the important units of the Lithgow Coal Measures, particularly the coal seams, are defined. The possibility of coal measures of Tomago
Jan 1, 1960
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The Hellyer Mine - Feasibility to Production with Confidence
For its Hellyer project, Aberfoyle sought to establish a high degree of confidence in all aspects of the feasibility study. Accurate capital and operating cost estimates were an integral and essenti
Jan 1, 1990
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Tunneling Toronto Canada 1970
By G. F. Jenkins, P. S. Hobden
Toronto as a geographical area provides an exceptionally wide variety of subsoil stratiphication. Tunneling consequently required a very wide range of adaptabilities to meet its changing conditions. T
Jan 1, 1997
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Uplift Micropile Load Transfer In Unsaturated Missoula Flood Deposits
By John N. Cunningham
Despite the wide use of micropiles for rehabilitating and retrofitting existing structures, little is known regarding the load-transfer distribution of grouted micropiles in various soil deposits. Th
Jan 1, 2011
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Resource companies must preserve capital while gaining operational efficiency
By Adam H. Zimmerman
Introduction Noranda, like similar businesses, is suffering the pain of previously unheard of currency relationships, a cost structure built in better days, and conditions of gross oversupply possibl
Jan 6, 1985
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Inclusions-Their Effect, Solubility and Control in Cast Steel
By C. E. Sims
THE following presentation is more a summation of observations made and conclusions drawn over a period of three to four years than a report of experiments made with a definite objective. Tests were m
Jan 1, 1932
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Seafloor Deployed Core Drill Successful In Deepsea Test
By M. E. Williamson
In September 2005 Williamson & Associates, Inc. delivered the BMS2 remotely operated seafloor coring system to the Japan Oil, Gas & Minerals National Corporation (JOGMEC). During acceptance trials ab
Jan 1, 2005
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Transformation of automated optical image analysis software Mineral4/Recognition4 to Mineral5/Recognition5
By A Poliakov, E Donskoi, K Vining
The automated optical image analysis software Mineral4/Recognition4 (M4/R4) is capable of performing comprehensive characterisation of different materials throughout the iron ore value chain, includin
Nov 8, 2021
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Exploration techniques for porphyry Cu?Au and related targets in a mountainous tropical environment: Case study of Freeport Exploration in Irian Jaya, Indonesia
By D. Potter
Freeport Exploration initiated regional reconnaissance exploration programs in Irian Jaya, the easternmost province of the Republic of Indonesia in 1990 (see figure 1). Irian Jaya occupies the western
Jan 1, 1998
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Improving Fine Particle Gravity Recovery through Equipment Behavior Modification
By Claude Deveau
"Studies on the performance of Falcon batch type concentrators treating ultrafine tantalum at Tanco have revealed that very fine heavy minerals are concentrated within certain areas of the concentrate
Jan 1, 2006
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Base Metal Heap and Tank Leaching from a Platreef Flotation Concentrate using Ammoniacal Solutions
By Jochen Petersen, Caroline Muzawazi
The technical feasibility of ammonia leaching of PGM bearing Platreef flotation concentrates was investigated as an alternative method for the recovery of base metals prior to precious metal recovery.
Jan 1, 2014
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Use of Twinned Drillholes in Mineral Resource Estimation
"Drilling twinned holes is a traditional technique used for verification of intersections of high-grade mineralization, testing of historic data, or confirmation of drillhole data during geological du
Jan 1, 2009
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RI 3116 A Study of the Properties of Texas-New Mexico Polyhalite Pertaining to the Extraction of Potash
By N. Fragen, H. H. Stroch
"INTRODUCTION A previous paper by H. H. Storch 4 described. three processes for the production of potassium sulphate from polyhalite (K2S01.MgSO1.2CaS04.2H2o), Since these processes depended upon calc
Sep 1, 1931
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Development of Bonded Sm-Fe-N Magnet using Reduction and Diffusion Method
By K. Ohmori, K. Takeya, S. Yoshizawa, A. Kawamoto, T. Ishikawa
"High performance Sm2Fe17N3 magnet powder is developed nitriding Sm2Fe17 alloy that 'is made using a reduction and diffusion method. Typical remanence, coercivity and maximum energy product of the fin
Jan 1, 2000
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Single-Particle Combustion of Chalcopyrite
Chalcopyrite concentrate was combusted in oxygen-nitrogen atmospheres, the composition of which ranged from 1-100 per cent oxygen. Factors studied included particle size, experimental temperature and
Jan 1, 1983
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Gold Mineralisation on Sudest Island: Preliminary Findings
By Ashley P, Neale T
Alluvial gold was discovered on Sudest Island in 1888, and by 1893, an official production of 10 000 oz had been won by expatriate miners from shallow alluvial and colluvial workings. Hardrock sou
Jan 1, 1991
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The Factors That Control the Depth of Ore Deposits
When asked to lecture at Bendigo on the geological factors that determine the depths of ore deposits, I hesitated for a little before agreeing to lecture on the theory of deep ores in the city world f
Jan 1, 1902
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Industry Practice Standards And DFI Practice Guidelines For Structural Slurry Walls - First Edition - Title ? Table Of Contents - Part I Industry Practice Standards - 1. Classification Of Slurry Wall Panels
There are many ways to classify structural slurry wall elements, but the DFI committee chooses to limit these descriptions to three functional requirements, namely: design function, plan configuration
Jan 1, 2005
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Mill Sizing For Phosphate Grinding In Mills Of 0.2 To 5 Meters In Diameter (d139b3f1-183b-4de8-a58f-300e7f63761f)
By Reed S. C. Rogers
The breakage parameters of phosphate ore were determined by batch first-order grinding studies in a laboratory ball mill according to the procedures described in the text by Austin, Klimpel and Luckie
Jan 1, 1985
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Wind Erosion Of Tailings Dams And Mitigation Of The Dust Nuisance
By G. E. Blight
Wind erosion can be a major cause of the loss and dispersion of tailings material from a tailings dam into its surrounding environment. Such dust dispersion can be a serious nuisance, as well as a hea
Jan 1, 2007