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By Thulin D

In 1971 the first Grangcold Pelletizing Plant came into operation at Grangesberg, Sweden where from a rich magnetite low- phosphoric concentrate and a cement binder (Portland cement clinker and granulated blast furnace slag) self-fluxing blast furnace pellets are produced.

Jan 1, 1974

The geologists at the Zinc Mine in Broken Hill have developed a method of logging core using portable MS-DOS computers and LOTUS 123. The computer based logging system has almost halved both the time and cost to produce a completed log. The system is fast, flexible, easy and pleasant to use.

Jan 1, 1990

By Bekturganov NS, Satayev I

The paper deals with the effect of sodium polysulphides in chrysocolla flotation. Activity of elementary sulphur adsorption on the mineral surface is discussed. The mechanism of polysulphide action in the process of sulphidisation and formation of sulphur on the mineral surface is proposed. Sodium pentasulphide is shown to be the most effective modifier of chrysocolla flotation.

Jan 1, 1993

This paper presents the descriptions of a final year geological engineering project at the Royal Melbourne Institute of Technology involving the correlation of borehole and mapped ground conditions and their statistical Analysis.

Jan 1, 1994

Regional conceptual and grassroots exploration by Epithermal Gold Pty Ltd. during the latter part of 1984 resulted in the virgin discoveryof the Mt. Fullstop Gold property located 115 kilometres west of Townsville, North Queensland. A major compilation of Epithermal, Hotsprings and Bonanza gold ores of volcanic association as defined by Lindgren in 1933 Ind refined by Buchanan and Eimon was reviewed. The geologic characteristics observed at Mt. Fullstop were found to be similar to those recorded with some S.W. United States gold Deposits.

Jan 1, 1991

This paper describes some research attempts to isolate factors associated with lost time accidents and attitudes to safety. Some results of these investigations are presented and their implications discussed. Proposed future research is outlined. Error analysis and the importance of organisational variables are briefly mentioned.

Jan 1, 1975

This paper describes the mechanical and electrical maintenance activities as practised at Isa Mine. The principles of preventative maintenance adopted are described as well as the basis of maintenance cost control.

Jan 1, 1978

By Jones TRP

The Agnew Nickel Mine has a short his-tory of mining activities. However it has experienced a large variety of ground support problems. These problems relate to geological, hydrological, geomechanical, structural and mining techniques. The majority of the prob-lems occur in other underground mines. How-ever the large serpentinite hosted ore body which contains over 80% of the ore has prob-lems rarely encountered in other mines. Sol-utions to the problems are only being gained by understanding the factors creating them.

Jan 1, 1985

While reaction to immediate demands may be required from time to time, the principal concerns of a Geological 'Survey should be proaction, with respect to the systematic production of maps, reports and data in order to meet exploration needs in the longer term, and interaction, which involves a complex matrix of relationships - firstly within the Department between disciplines and at various levels of responsibility, secondly with the exploration industry, thirdly with Commonwealth authorities particularly the Bureau of Mineral Resources (BMR), and fourthly with university researchers in related fields.

Jan 1, 1987

Successfully managing project development and construction has often been a challenge in the mining industry. This is reflected in the number of projects that have taken longer to build, exceeded their budgets and then struggled to achieve the performance targets so confidently predicted beforehand. This paper outlines the fundamental elements of project management necessary to deliver mining projects on time and on budget, and performing as originally intended. It looks at areas such as the study process, project planning, team selection and structure, project controls, types of contracts used and approaches to contract management.

Jan 1, 2006

By M Revell

The paste fill system at BHP CanningtonÆs underground silver-lead-zinc mine is described. The first of its type in Australia, the paste fill system has been operational since December 1997. Key technical and operational learnings since the first underground stope was filled are presented. Issues addressed include plant performance, pipe wear and failure, automatic control, rheology and in situ performance.

Jan 1, 2000

Operation of a pilot heavy medium separation plant allows flexibility of operation not normally possible in an operating plant. Much useful data can be obtained, although some limitations apply. Projects carried out at AMDEL have included HMC separations at 1.5 to 3.6 specific gravity, comparative operation of HMC and DWP separators and the use of fine feed and product screens. Investigations of this type have provided a considerable amount of information on HMS plant performance and characteristics under a wide range of operating conditions.

Jan 1, 1987

By Farley RJ

The use of D-H Vacuum treatment at the Waratah Works of Commonwealth Steel Coy Ltd is broadly discussed in relation to the wide variety of products manufactured by the Company. The metallurgical features of the process are considered and related to the quality benefits deriving from its use.

Jan 1, 1972

Some of the problems of flotation, un- Solved in the mid-1950s, and possibly still unsolved today, are discussed with emphasis on dynamic aspects. These prob- lems include the nature of the air-water interface, particle-bubble contact and bubble attachment, and the effect of par- ticle size. Questions are also raised on the possible influences of the variability of minerals on flotation, particularly variations in composition and in foreign inclusions, both solid and fluid.

Jan 1, 1984

The Adavale Basin and Warrabin Trough are remnants of a much more extensive Devonian to Carboniferous depression which evolved through four tectonic stages; an initial period of rifting and three periods of foreland thrusting, which cannibalized much of the earlier depression. The Basin has subsequently been buried by sediments of the Galilee and Eromanga Basins.The Basin was initiated during the Early Devonian when the earlier cratonized Thompson Foldbelt rifted away to form a marginal sea comparable to the South China sea. This crustal extension was probably in a Northeast-Southwest direction. These initial rifts were the site of acid volcanism (Gumbarbo Formation) and later, deltaic and shallow marine facies (Eastwood Beds).

Jan 1, 1990

By Sofoulis I

Recent studies in the Archaean of the Kalgoorlie-Norseman area show that the layered rocks can be subdivided into two main units, both containing basic igneous rocks and sediments. The lower unit is distinguished by the presence of acid volcanic flows and sills. In some areas, clastic sediments become coarser and,pas-s into conglomerates. This passage is accompanied by thinning of the beds. These features and their distribution suggest a basin of subsidence flanked-by areas of shallow-water deposition. -.

Jan 1, 1964

By Wilson T, Stone M, Mattiazzo R

The regulation of environmental management in the minerals and petroleum industries has been undergoing considerable change over the past decade. In recent years, there has been a distinct trend towards smaller government and increased environmental awareness. Current regulatory systems have generally neither responded to these trends nor effectively dealt with the demands placed on them. There is a need to develop a more effective means of providing assurance to Government and the community that its environmental objectives are being met. These means must also enable industry to have an effective environmental management process.

Jan 1, 1993

The different stages of the metallurgical evaluation of an ore resource and their importance to overall project evaluation are described. Particular emphasis is placed on the liaison that is necessary between the different members of the project team from the preliminary exploration phase through to the completion of the final feasibility study. Metallurgical input at the earliest stage is recommended. The incorporation of metallurgical and marketing data into ore reserve statements and the effect of the metallurgical evaluation on ore reserve classifications are discussed.

Jan 1, 1987

The perennial challenge facing mining and minerals operators is to improve productivity, usually by a combination of cost reduction and performance improvement. In a typical production situation involving mining and processing activities, the standard approach has long been to seek improvements in each activity, effectively in isolation from each other. However, the realisation is growing that there is considerable potential to achieve really substantial productivity gains by much improved integration of mining and processing with the key being to consider what is best in the total sense. Some of the linkages between fragmentation in mining and downstream processing are considered in this paper. These linkages involve technical, operational and economic Considerations.

Jan 1, 1997

Offshore petroleum development involves massive capital expenditure and financing demands, with the main participants being large international oil companies and State owned enterprises. Types of project oriented financing include take-or-pay contracts, throughput agreements, and production payment financing. The main project finance credit aspects are revenues, investment budgets and cost over- runs, reservoir, political and other risks and special problems such as weather and corrosion in the North Sea. A variety of documents is required and a mix of equity, export credit and Euro-market financing will typically be included in the financing.

Jan 1, 1983