Food Issues in Environmental Impact Assessments

Mining Rocks! CIM Toronto 2005
Abstract Risk assessments of contaminant levels in foods from a human health perspective are an integral part of environmental impact assessments. Country foods can potentially become contaminated due to activities associated with development projects, such as mining projects.

A standardized procedure has been developed for risk assessment in regard to contaminants in country foods. This standardized risk assessment involves collecting analytical data consisting of the levels of contaminants in country foods harvested from the project area. Examples of potential contaminants due to mining projects are discussed.

Contaminants of potential concern must be identified based on feasible exposure pathways. Toxicity reference values for the contaminants are required as well as food consumption information.

Post development monitoring of contaminant levels in foods is essential. Acquiring background levels of contaminants in the foods before the project starts is necessary to determine the impact of the project activities on the contamination of country foods.

Based on the analytical data collected for contaminant levels in foods for these studies, risk assessments can be undertaken. Recommendations can be provided to protect the health of local residents, based on the results of these risk assessments and the monitoring studies conducted.

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Proceedings: Mining Rocks! CIM Toronto 2005
Author(s): Peter K. Kaiser, Pavel Vasak, Fidelis T. Suorineni, Denis Thibodeau
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Year: 2005
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Summary: Discussion Points
Part 1: Global Mining Industry/Related Issues
Historical Metal Price Trends.
Historical LME Metal Stockpiles.
China’s Demand for Metal.
World Population Growth, Demands and Development.

Part 2: Canadian Mining Industry – Where are we? And where are we going?
What progress have we made in the past 20 years?
Where do we stand regarding mineral production?
What does the future hold for us?

Conclusion!
Proceedings: Mining Rocks! CIM Toronto 2005
Year: 2005
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Summary: The paper describes a focus of work presently being conducted at the Rock Mechanics Research Group at the University of British Columbia. The underhand method ensures a high recovery under an engineered back(sill mat) that is comprised of cemented rock fill and/or cemented paste fill. This method of mining is necessary either due to a weak rock mass comprising the immediate back and/or high induced back stresses. A major concern in the design of sill mats is the loading and strengths...
Proceedings: Mining Rocks! CIM Toronto 2005
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Summary: Intelligent Air Management(IAM) is the core activity of M&I Air Systems Engineering (M&I). IAM facilitates energy management goals of mining and mineral processing operations in achieving greater efficiency. Recommendations for energy-efficient ventilation in a vibration and noise free environment are made with the patended innovative solutions supported by extensive computational fluid dynamics (CFD) studies. The soultion scope extends from an intelligent and integrated exhaust silencer to...
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Summary: The Diavik Diamond Mine was built on a solid foundation of local and aboriginal community consultation and benefits. Through a number of “out of the box” approaches, Diavik developed innovative ways to contribute to local community capacity and enhanced community transparency. When combined with its high regard to environmental protection and excellence in engineering and technology, Diavik is meeting its own stringent sustainable development objectives.
Proceedings: Mining Rocks! CIM Toronto 2005
Year: 2005
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Summary: "Risk financing solutions are emerging to fully address environmental liabilities for mining operations. Supported by specialized insurance and alternative risk transfer (ART) products, mine owners can fund, cap and guarantee the environmental liabilities and closure obligations of a mine within a financial structure that will be acceptable to regulators. An environmental risk financing program will permit an owner to transfer the liabilities and indeed the ownership of a site to a third...
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Author(s): Paul Fitzgerald, Paul Tomory, Jean-Francois Bolduc
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Summary: The paper will discuss the role and value of performance indicators in addressing energy efficiency and the reduction of greenhouse gas emissions in the mining industry. In particular, the paper will focus on the first year of MAC reporting on its new energy and GHG indicators, lessons learned, and changes made in the progression toward the development of a common annual assessment system and implementation progress. The management process and new operations performance indicators provide...
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Summary: This paper will discuss the benefits and advantages of using 3D survey data in stope analysis. Obtaining detailed 3D survey data of underground mine progress and production is a challenge. It is almost impossible to “see” around corners, underneath overhangs, or deep into dark, dusty, humid underground voids. Thus, valuable ore can remain permanently encased in backfill. Without the benefit of 3D survey data, underground mines have the difficult task of meeting grade quotas without the...
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Summary: Sinced WWII there has been increasing international diversification in the sources of diamonds, and Botswana has risen to be the largest producer by far. Over the past ten years Canada has emerged from obscurity to a leading position among diamond producers. Worldwide consumer consumption of diamond jewellery has been democratised and internationally diversified. Advertising by De Beers has created markets for new products in new countries, and rising consumer disposable income has propelled...
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While there are reporting requirements to satisfy when stating a mineral resource estimate, an examination of the NI 43-101 reports suggests that authors believe that there are a number of ways of addressing these requirements. As a reader of these reports, some processes are helpful and others are not so in getting a real appreciation of how realistic is the mineral resource estimate....
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Summary: An opportunity was presented to analyse stope performance and geotechnical information at George Fisher Lead-Zinc mining operations beginning in October 2003. This paper represents how an in depth analysis into site geotechnical data and stope reconciliation led to major changes in stope design, a reduction in dilution, and a significiant increase in mining efficiencies to safely meet production targets.

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Summary: The application of igneous lithogeochemistry (petrochemistry) combined with stratigraphy and geological mapping can be useful in delineating prospective volcanogenic massive sulphide (VMS) “belts” at the 1:50000 to 1:250000 scale. Most VMS belts from the Archean to Phanerozoic are associated with extensional geodynamic regimes (e.g., arc rifts, back-arc basins, intracontinental-rifts) and evidence for high temperature mafic (e.g., boninites, MORB, low-Ti arc tholeiites) and/or felsic...
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Summary: Risk assessments of contaminant levels in foods from a human health perspective are an integral part of environmental impact assessments. Country foods can potentially become contaminated due to activities associated with development projects, such as mining projects.

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Proceedings: Mining Rocks! CIM Toronto 2005
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Summary: The Cobequid-Chedabucto Fault Zone (CCFZ) in northern Nova Scotia is a 300 km long series of en echelon faults; it represents the boundary between the Avalon Terrane to the north and the sedimentary Meguma Terrane to the south. The Avalon Terrane contains Devonian, rapakivi-textured A-type granites and co-magmatic mafic intrusions, and their extrusive equivalents, high-Zr rhyolite (ignimbrite) and basalt. The geology of the Avalon Terrane is at least superficially similar to that of the...
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Summary: Operating the underground marble quarries effectively, it is important to evaluate the deposit blocks economically which are affected by the suitability of the topography and configuration of bedding. The joint sets within the deposit and the spacing between these discontinuties are also of great importance. In this study, the marble deposits that could be geomechanically eligible for underground excavation have been selected throughout Turkey and these selected reserves have been classified...
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Proceedings: Mining Rocks! CIM Toronto 2005
Year: 2005
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Author(s): C. Bacigalupo, G. Musca, E. Sigal
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oxide-copper-gold ("IOCG")deposits world-wide.
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Proceedings: Mining Rocks! CIM Toronto 2005
Keywords: Copper, Gold, Australia, IOCG, Geology, Exploration
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Summary: Exploration by Nikos Explorations Ltd. in Central Ontario has focused on two properties north of Sault Ste. Marie. These properties, while exhibiting different styles of mineralization, share many characteristics of the IOCG class of deposits.

Copper-rich breccia style mineralization at the Island Copper property has been identified intermittently over an area of approximately 450 metres by 300 metres and occurs within a 1,000 metre by 400 metre envelope of hematite mineralization. The...
Proceedings: Mining Rocks! CIM Toronto 2005
Author(s): Delio Tortosa
Keywords: IOCG, Ontario, Alteration, Gold, Structure, Copper
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Rio Tinto has responded to this risk to its long-term business by developing a corporate biodiversity strategy. Initially, the views of conservation...
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Keywords: Biodiversity, Development
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Summary: Despite extensive research, the features that control the location
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extensional tectonics in order to define the key controls on the...
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Author(s): Rodney L. Allen, Jan M. Peter, Fernando Tornos, M. Namik Çagatay
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Summary: In order to maintain a production rate of 6,000 tonnes per day from underground at the Williams Operating Corporation, two independent mining areas were required which created a long narrow sill pillar between them. During initial mining of the sill pillar there were a number of significant ground falls and in March 1999, with no active mining ongoing in the sill pillar area, a rockburst of magnitude 3.0 Nuttli occurred. Extensive ground support was designed and installed to withstand events...
Proceedings: Mining Rocks! CIM Toronto 2005
Author(s): Scott Jones
Keywords: Sequencing, Rock bursting, Underground design, Instrumentation, Numerical modelling, Ground support
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Today, significantly more cost-effective geotechnical...
Proceedings: Mining Rocks! CIM Toronto 2005
Year: 2005
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Summary: A review is presented of current developments in the fields of diamond prospectivity mapping, kimberlite exploration, diamond content and preservation analysis, and the advanced stage, step-wise assessment of diamond grade and value.

Since the initial discovery of the Point Lake Kimberlite in 1991, Canada has proven a fertile environment for the development of new methods in the exploration for, and delineation of, diamond deposits. Initial successes in the Lac de Gras area were based upon...
Proceedings: Mining Rocks! CIM Toronto 2005
Year: 2005
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Summary: The Red Lake Camp has produced >645 t of gold from 17 mines that were active at various times since production began in 1930. The bulk of the gold production (>480 t) has been from the prolific Campbell – Red Lake deposit, the only currently producing deposit, being mined separately by Goldcorp Inc and Placer Dome Inc. Based on host rock associations, alteration assemblages, and vein mineralogy, the gold deposits of the Red Lake camp can be classed into at least two main groups; volcanic-host...
Proceedings: Mining Rocks! CIM Toronto 2005
Keywords: Red Lake, Campbell-Red Lake, Archean, Gold
Year: 2005
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Summary: Backfilling in underground mines has been practiced for close to 100 years and use is anticipated to continue at an increasing rate during the foreseeable future. Typical underground mines utilizing backfill are faced with backfilling costs ranging between $2/tonne and $23/tonne of backfill, representing between 2% to 26% of the total mining cost for these mines. Activities related to backfilling operations, such as handling, transportation and placement, require extremely large amounts of...
Proceedings: Mining Rocks! CIM Toronto 2005
Author(s): Euler De Souza, Jamie Archibald
Keywords: Cement, Tailings, Backfill, Recycling, Glass
Year: 2005
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Summary: Simply Empowering: Innovative Software Tools for the Miner

"Simplicity is the ultimate sophistication."
Leonardo da Vinci (the draftsman, painter, sculptor, architect and engineer)

Introduction:
Today, Canadian mines face stern challenges. Many confront dwindling ore reserves, or remaining inventories that lie at great depths. All operate under strict regulations that require responsible environmental behaviour, and all have to compete with lower cost operations based in developing...
Proceedings: Mining Rocks! CIM Toronto 2005
Author(s): Reginald Hanmmah
Keywords: software, elasto-plastic analysis, Numerical modelling, modelling excavation support systems, mining software, Rocscience, elastic analysis, Geomechanics, Examine-3D, Phase2
Year: 2005
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