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The results from three quick methods for the determination of W03 in scheelite ore samples, mill products and concentrates were compared with gravimetric results and tested with standard samples to establish which was the most reliable. Summaries of the methods, two X-Ray fluorescence and one colorimetric, are given. The best method was X-Ray fluorescence, with samples cast as glass discs.

Jan 1, 1988

Weinberg, born and educated in Germany, worked in'the American West for 10 years as a mining engineer and metallurgist. He was the first head of the Queensland Smelting Co. and from 1889 through 1915 was a prominent mining figure in Queensland. He was a competent manager at Aldershot, Dapto, and Chillagoe, but always lacked huge ore deposits for his smelters.

Jan 1, 1985

The Pacific Rim countries of Australia, New Zealand, Papua New Guinea, Indonesia, Fiji, Philippines and Solomon Islands will be reviewed from an equity investors perspective. The following areas will be covered: ò Country risks ò Exploration spending and activity ò Project development ò Taxation ò Relative cost of doing business ò Environmental considerations ò Political/bureaucratic situations ò Capital raising ò Equity markets as a source of funds ò Developing market funds The aim of the paper will be to outline the most attractive areas for investment by equity and private funds plus documenting the changes needed in the less favourable countries if they are to attract investors.

Jan 1, 1995

Mine planning for ore recovery by open stoping and pillar recovery is becoming more sophisticated, but there are basic operating constraints which must be imposed if this planning is to realise the production results on which the mine is dependant. The production reliability of an open stope is usually a high priority and common design problems can be identified. A range of practical considerations which should be considered at the mine planning stage are reviewed including equipment performance, blasting technology, ventilation requirements, development layouts, lead time, ground conditions, support, backfilling and ore recovery.

Jan 1, 1982

Arm Royalty systems of different types are used throughout Australia by both state and federal governments to raise revenue and thus facilitate in the proper distribution of mineral wealth. Royalty systems should be neutral and equitable but by their very nature these objectives are impossible to obtain. Because of the individual nature of mineral deposits, in particular variable cutoff grades and tonnages, governments should be aware of the possible trade off between short and long term gains of the particular royalty scheme introduced.

Jan 1, 1982

By Van Groenou B

Traditionally mining and conservation have been regarded as opposing and mutually exclusive concepts of land use. Often problems are anticipated which cannot be substantiated by facts. In addition, an ill defined time-scale adds to potentially emotive issues. Examples from Australia and elsewhere are presented which illustrate the dynamic nature of the environment and accentuate sequence patterns in plant community development following natural and man-made disturbances. The mining industry generally appears to be aware of the environmental impact of mining and whilst endeavouring to minimise the disturbance, is still orientated towards maximum production.

Jan 1, 1984

Several coal preparation plants are presently "automated" to the extent of automatic sequencing and interlocking via digital means, together with closed loop control on various level and density circuits. This paper will explore the potential for second generation automation utilizing on-stream ash analysers and other measuring elements so as to optimize the total metallurgical process. This would enable maxim-ization of recovery, improved product homogeneity and minimum reagent consumption.

Jan 1, 1985

The smaller mining company with full ownership of, or participation in, a mining project is generally unable to obtain funding as easily as the major mining house. While the equity market remains the main funding source for small projects, debt fund- ing options are becoming more available. Many international banks possess in-house mine fin- ancing expertise which can assist the smaller company in financing its share of project development. A clear understanding is necessary of both the benefits and limitations of bank funding, to ensure that all potential sources of funds are properly considered and integ- rated into the financial plans of the smaller mining companies.

Jan 1, 1984

The fundamental natural ingredient of any mining development is an ore reserve. The classical definition of an ore reserve has both technical and commercial components, each involving elements of risk. By definition the desposit must contain mineral values which are "extractable at a profit". Metallurgy supplies a vital link between these two basic requirements of a successful mining project; the metallurgical input establishes the process by which the contained minerals may be recovered and converted into marketable product(s).

Jan 1, 1983

Total quality control in tandem with Japanese style management largely accounts for the high product quality and international competitiveness of growing manufactured exports from Japan. Japanese management is often identified with life-time employment, promotion by seniority, company-based unionism, the process of obtaining the sanction of executives to a plan by circulating the draft prepared by a person in charge of a particular matter, internal consultation, consen- sus-based decision-making, etc., all of which are just formal manifestat- ions of the underlying current of the spirit of cooperation that translates itself into "management through labor- management cooperation".

Jan 1, 1982

The title of my address today is "Oil and Gas Valuations - A Simplistic View of Some Critical Issues". Alternatively I could have called this address "Pitfalls for investors' and corporates in accessing Independent Experts Reports" 'as in this brief 12 minute talk I will briefly comment on some common misconceptions with regard to the valuation of exploration areas and production interests, and comment on how the draft release guidelines address these issues.

Jan 1, 1989

The design of drawpoints in caving and stoping mines has a significant impact on the productivity of the operation. Drawpoints must be designed to provide uniform drawdown and maximum recovery of the broken ore within the limits imposed by the dimensions of the stope, the stability of the pillars, the method of draw, material flow characteristics, etc. The design of drawpoints historically relied on the mining engineerÆs experience and intuition. However, in many operations, empirical analyses have also produced important information regarding design geometry. Factors that affect the sizing and spacing of drawpoints are discussed and guidelines are provided for their design in order to obtain maximum recovery of broken ore and reduce hang-ups.

Jan 1, 2000

The (SA Mine at Cobar produces a mix of copper and copper lead and zinc ores fran long hole open stopes. Primary jaw crusher product is fed to two parallel primary autogenous mills followed by a secondary ball mill. Each mill operates in closed circuit with cyclones. Grinding equipment and the main operating variables are described. Copper lead and zinc flotation concentrates are produced sequentially. The control systems and operating strategies are described.

Jan 1, 1983

Inadequate understanding and/or assessment of technical and economic risk associated with geological uncertainty are key reasons many mining projects do not achieve forecast profitability. In the last 20 years many new and existing mines have experienced geology related problems, including lower than planned development and production rates, geotechnical/stability issues, unplanned dilution, ore loss, reduced metallurgical performance, environmental management concerns and unbudgeted capital/operating costs. Greater emphasis on the evaluation and communication of uncertainty associated with geological interpretations for feasibility and operations management results in better decision-making. The outcome of better decision-making is more efficient mining yielding enhanced financial returns for the mining industry.

Jan 1, 2009

Rocks of all geological ages are present on the Australian continent. As a result of its geological heritage, Australia is richly endowed with mineral and energy resources. Due in part to its enormous mineral wealth, the nation is in the position of being a wealthy country surrounded by less developed countries of the Asian and Pacific region. Over many years Australia has developed and gained valuable experience in the exploration, mining and processing of a wide range of mineral and energy resources. In an interdependent world community, it is obviously in Australia's interest to cooperate and provide assistance in geoscience education and training to developing countries of the region.

Jan 1, 1986

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

In December 1997, a series of new environmental legislation was enacted including:ò Environmental Planning andAssessmentAmendmentAct 1997; ò Contaminated Land ManagementAct 1997;ò Protection of the Environment (Operations) Act 1997; ò Native Vegetation Conservation Act 1997; andò Pollution Control (Load Based Licensing) Act 1997.These new Acts will have varying degrees of impact on the coal mining industry in New South Wales when they commence later this year.

Jan 1, 1998

By N C. White, C M. Allen, I H. Campbell

Porphyry Cu-Mo (Au) deposits of southern and western China are localised in ancient arc environments and continental-collision orogenic belts. Despite the contrasting tectonic setting, the known deposit geology and geochemistry appears identical in both. As such, the application of existing ore deposit models to atypical collisional settings suggests that significant potential exists for future discovery of significant porphyry deposits throughout the accreted cratonic blocks of Asia. An EXTENDED ABSTRACT is available for download. A full-length paper was not prepared for this presentation.

Jan 1, 2008

In June 1996, Nord Resources Pacific (Nord) decided to work towards obtaining all necessary approvals from the government of PNG for a mine on Simberi Island in the Tabar Island Group, New Ireland Province. On the 9th of September 1996, Nord submitted a Proposal for Development and an application for a Mining Lease to mine the oxide gold deposits on Simberi Island. The Mining Lease was granted on the 3rd of December 1996 in a signing ceremony on Simberi Island. This was achieved in the extremely short time frame of less than 3 months and this paper attempts to explain the processes which made it possible.

Jan 1, 1997

A vital ingredient in ensuring that metals exploration companies, working in the developing countries of the Pacific Rim, support the development of national geologists is making such a learning program cost-effective. There is a wide spectrum of learning needed in the development of these explorationists: the technical and conceptual skills to carry out exploration efficiently, the professional and managerial skills to apply the exploration in the work situation, the personal attributes required to manage their exploration effectively, and a company organisation that allows them to learn and use these skills and attributes.

Jan 1, 1995