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A unique opportunity is presented to Australia by recent developments in the Carpentaria and Mount Isa Mineral Province.Unique in two ways:The size, diversity and multiplicity of mineral finds in the region, and the continuing prospectivity.The approach being undertaken to accelerate development, increase the value generated for all stakeholders, and the value added in the region.

Jan 1, 1993

The paper examines the current status of risk and accepted practice in mining geomechanics. It explores some deficiencies in human capital, risk analysis and our future technical needs, and suggests ways of improving our estimates of slope reliability through knowledge sharing and research.

Jan 1, 2003

By Bojcevski D

The deportment and textural relationships of silver bearing phases are key characteristics in understanding the behaviour of silver ores in flotation tests or processing plants. These characteristics are however difficult to define and quantif

Jan 1, 1997

By Leaning R. W, Goodman P. J, Lidgate P. N

The impact of computer based design tools on the engineering industry has been enormous. With the advent of computer aided design and its continual evolution into tools such as 3D design and photogrammetry the face of the engineering office ha

Jan 1, 1998

The direction taken by mineral processing in the next 20 years will be determined by sharing of Australia's resources to fill world needs; by the low energy costs in Australia; by environmental considerations; and by Re- search and Development contributions. Examples of the interplay of these factors are given by consideration of eight minerals.

Jan 1, 1981

This paper mainly studies the creation and optimisation of a doublesymbol random engineering network, by means of developing a set of engineering network project dynamic decisions and an optimisation sustaining system, which can realise engineering network dynamic workout and optimisation. It can provide a good decision for engineers and managers to supervise and manage the construction development and to ensure completion of the construction on time.

Jan 1, 2003

Chairman Bob Dennis, Ministers Frank Walker and TonyMcGrady,ActingMayor Bob Moore, other distinguished guests, fellow delegates to this Carpentaria and Mount Isa Regional Development Forum.Firstly I would like to congratulate the North West Queensland Branch of the AusIMM, and particularly its Committee, on what has been a verysuccessful Forum by any measure and for their kind invitation to me to participate in this Forum.

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

By Denholm WT

The Dittmer process for the debismuthising of lead by electrolysis beneath molten caustic soda has been scaled up to 100 kg lots for batchwise operation and to 20 kg per hour for a continuous flow of lead. Bismuth was decreas- ed from 0.03 to less than 0.005 wt. per cent for an electricity consumption of 220 kWh per ton of lead. Lower bismuth levels may be readily achieved if required.

Jan 1, 1975

A schematic overview of the variables which interact to determine ore reserves precedes consideration, in this context, of some recent views on the concept of a 'production cycle'. Political and governmental action, for whatever motives, is a greater obstacle to future mineral supply than technical problems.

Jan 1, 1979

The "Industrial Minerals" sector of the Australian minerals industry over the past decade or so can be seen to be moving away from a somewhat ad hoc grouping of producers to a more highly integrated and sophisticated industry in which products are being more stringently specified and greater amounts of capital are being spent.

Jan 1, 1983

The paper looks at those factors which led the Latrobe Valley Community Forum to .focus on shortcomings of the consultative process. that existed around the 1980 period, and the limitations on the ability of the community of the Latrobe Valley to have input to the factors affecting their quality of life. Through a review of the Yallourn East Field Extension project it seeks to demonstrate the changes that have occurred and some of the shortcomings still existant in the consultation process.

Jan 1, 1992

By Mills J. C

Concentration ranges are presented for 15 trace elements not previously reported in Australian bituminous coals. The results were obtained by instrumental neutron activation analysis, which has sufficiently high sensitivity to enable determination of many elements directly in coal at concentrations less than a few µg/g. The ranges found in Australian coal are similar to the ranges reported in North American bituminous coals.

Jan 1, 1983

In his introductory remarks Mr. MacKellar referred to three types of development which may be considered to compete with mining for land use. 1. Total Development - in which he cited urban development, and intensive agriculture. 2. Partial development - in which he cited pastoral, and in this category would come National Parks. 3. Non development - in which category would fall the primitive or wilderness areas.

Jan 1, 1971

In recent times there has been a marked increase in public awareness of air pollution. Some of this has been induced by the Press but our own senses tell us that there is a visible haze over our cities on many mornings. The people are now demanding a clean environment and will no longer tolerate smoke and dust fall or gaseous and odorous emission which either soil building and furnishings or interfere with comfort and well being.

Jan 1, 1971

Following GyÆs earlier proposals for the use of StudentÆs t-test, a simplified, effective method and philosophy are proposed to test for maximum tolerable bias in data sets as well as in sampling devices. The philosophy of testing is particularly emphasised to derive important practical implications in terms of decision-making and risk control. Conclusions are offered which should equally matter to manufacturers and users of sampling equipment.

Jan 1, 2005

By M C. Evans

"Mine decommissioning is the final phase in a mining project. Planning for decommissioning must commence for a proposed mine even before the government approves it. Queensland mining approvals require proponents to commit to completion (or closure) criteria defining successful rehabilitation. Queensland mining project statutory environmental authorities must also specify how progressive rehabilitation is to occur throughout the mining project. Final landforms with graded banks together with creek and run-off diversions are often required and constructed early in the life of a mining project. At closure, mining projects must demonstrate that future medium-term risks are not significant, or failing this, a residual risk financial payment must be made to the state. CSIRO climate change projections indicate that Queensland is likely to become warmer this century with less rainfall in parts and with extreme rainfall events likely to occur more frequently. This project was undertaken to?determine: if current rehabilitation planning tools assist in determining the environmental risks from mining closure not adequately addressing climate change if these risks are addressed by current rehabilitation outcomes.The north-west Queensland mining region and the central Queensland coalfields were represented in this project by five study sites. Local data sets for temperature, rainfall and rainfall intensity were produced using conservative greenhouse gas emission scenarios representing likely future atmospheres, and using the SimCLIM climate model, Evaporation data sets were also derived from available climate parameters. These projected climate variables supported equations and models used in Queensland to determine mining project rehabilitation completion criteria. Storm intensities and return intervals were directly applied to assess the likelihood of failure of engineered structures such as stormwater diversions and banks. Plant cover change determined by an existing growth model together with rainfall intensity and changes in the R and C factors of the universal soil loss equation (USLE) erosion model enabled estimates of long-term erosion rates. Flood estimates were undertaken using regional rated catchments.The study found that stormwater diversions and banks on recontoured rehabilitated landforms, if constructed to currently accepted completion criteria, would likely fail within 30 years and with the likelihood of failure steadily increasing thereafter. The change in likelihood of failure was able to be estimated and could be applied to the determination of residual environmental risk for approval of a surrender application involving rehabilitation. The USLE model showed that long-term erosion rates increased as a consequence of climate change from north to south across the Queensland mining precincts. Because the growth model did not consider carbon dioxide fertilisation affects, results would likely be worse-case.Likely climate change outcomes have consequential residual environmental risks of mining project rehabilitation failure. This increased risk may result in increased payments to the state from mining projects where high consequences exist. The liability to the state and risk to the environment can be avoided if today’s completion criteria address tomorrow’s climate change impacts.CITATION:Evans, M C, 2014. Queensland mines should consider climate change impacts for decommissioning, in Proceedings Life-of-Mine 2014, pp 535–562 (The Australasian Institute of Mining and Metallurgy: Melbourne)."

Jul 16, 2014

The types of risk to mining projects using environmental protection as justification are examined. In Australia, Governments, whether Federal or State, enforce environmental legislation. The way they do This has an impact on the risk to a project. This is discussed and examples are taken from the Northern Territory uranium industry. Special reference is made to mine closures where the roles are not yet entrenched.

Jan 1, 1994

Monazite sand is processed at the rate of 25-30 tons per week at Rare Earth Corporation of Australia's plant at Port Pirie. Main products are rare earth concentrates of cerium, lanthanum and yttrium. By-products are commercially pure water soluble thorium sulphate and tri sodium phosphate. The more recent developments in volume rare earth applications are Discussed.

Jan 1, 1972

By J M. Wang, Q M. Hao

A mathematical model is set up to solve the problem of optimal design of the production scheduling on exacting open pit mine. At the same time, the establishment of model in operation condition and its solution are considered completely. It gives not only algorithm of optimal design but also strict mathematical argumentation in the process of optimal design.

Jan 1, 2003