38 results
Search Results
2. Study on the efficiency of destress blasting in deep mine drift development.
- Author
-
Sainoki, Atsushi, Mitri, Hani S., and Emad, Muhammad Zaka
- Subjects
DESTRESS blasting ,BLASTING ,GLACIAL drift ,MINE safety ,ROCK bursts ,MINES & mineral resources ,MATHEMATICAL models - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
- Full Text
- View/download PDF
3. Introduction to the Grenville Province: a geological and mineral resources perspective derived from government and academic research initiatives.
- Author
-
Corriveau, Louise and Clark, Thomas
- Subjects
MINES & mineral resources ,METALS ,MINERALS ,PRECIOUS metals ,MINING camps ,EARTH sciences ,GEOLOGY ,MINERALOGY ,ORE deposits - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2005
- Full Text
- View/download PDF
4. Introduction to the Special issue of the Canadian Journal of Earth Sciences, "Magmatic and metallogenic processes associated with large igneous provinces".
- Author
-
Williamson, Marie-Claude and Saumur, Benoit M.
- Subjects
IGNEOUS provinces ,EARTH sciences ,MINES & mineral resources ,IGNEOUS rocks ,GEOCHEMISTRY ,PETROLOGY - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2019
- Full Text
- View/download PDF
5. Mining Industry in Canada (Opportunities and Threats).
- Author
-
KUZIOR, Aleksandra and GREBSKI, Wes
- Subjects
- *
MINERAL industries , *MINING methodology , *SAFETY regulations , *LABOR bureaus , *MINES & mineral resources , *ENVIRONMENTAL protection , *MINE safety , *MINE accidents - Abstract
The article contains a case study focusing on the safety procedures related to the mining industry in Canada. The purpose of the study was to identify the best mining practices in Canada. The paper contains an overview of the laws and procedures regulating the mining industry in Canada as well as the procedures for enforcing environmental and safety regulations. The procedures for changing and constantly updating the safety regulations are also being discussed. This was also done for the purpose of identifying the best practices. The article also addresses the procedure for investigating mining accidents in Canada. The article emphasizes the importance of a three-way partnership (management of the mining company, labor union, and the Ministry of Labor). That three-way partnership is important from the perspective of revising and modifying the mining safety regulations as well as enforcing those regulations. Participation of the labor union as well as the management of the mining company in updating safety regulations makes them more practical and reflective of real safety issues. Unpractical and obsolete mine safety regulations are being eliminated. The labor union and mine management feel the ownership of the mining safety regulations. This fact makes it easier to enforce new regulations. The article also focuses on environmental protection procedures. Environmental risk evaluation is conducted before a mining permit is issued. This is being done by the provincial government. During the mining operation, the Ministry of Labor is handling the environmental protection issues. The Ministry of Labor is constantly checking the compliance with the safety as well as the environmental and sustainability guidelines. Using artificial intelligence and Industry 4.0 technology is also being mentioned. [ABSTRACT FROM AUTHOR]
- Published
- 2022
- Full Text
- View/download PDF
6. A heuristic approach for the stochastic optimization of mine production schedules.
- Author
-
Montiel, Luis and Dimitrakopoulos, Roussos
- Subjects
HEURISTIC ,MINES & mineral resources ,MINING engineers ,MINERAL processing ,MINERAL industries ,CASH flow - Abstract
Traditionally, mining engineers plan an open pit mine considering pre-established conditions of operation of the plant(s) derived from a previous plant optimization. By contrast, mineral processing engineers optimize the processing plants by considering a regular feed from the mine, with respect to quantity and quality of the materials. The methods implemented to optimize mine and metallurgical plans simultaneously are known in the mining industry as global or simultaneous optimizers. The development of these methods has been of major concern for the mining industry over the last decade. Some algorithms are available in commercial mining software packages however, these algorithms ignore the inherent geological uncertainty associated with the deposit being considered, which leads to shortfalls in production, quality, and expected cashflows. This paper presents a heuristic method to generate life-of-mine production schedules that consider operating alternatives for processing plants and incorporate geological uncertainty. The method uses iterative improvement by swapping periods and destinations of the mining blocks to generate the final solution. The implementation of the method at a copper deposit shows its ability to control mine and processing capacities while increasing the expected net present value by 30% when compared with a solution generated using a standard industry practice. [ABSTRACT FROM AUTHOR]
- Published
- 2017
- Full Text
- View/download PDF
7. Concept Development of Optimal Mine Site Energy Supply.
- Author
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Carvalho, Monica and Millar, Dean L.
- Subjects
POWER resources ,MINES & mineral resources ,INERTIA (Mechanics) ,COST effectiveness - Abstract
This paper reports on early work and concept development for Optimal Mine Site Energy Supply, where the specific energy supply requirements and constraints for mineral production operations are considered against methodologies that have been applied for other sectors and in other energy policy regimes. The primary motivation for this research is to help ensure that Canadian mineral producers will achieve reduced production costs through improvements in the efficiency with which they consume energy resources. Heat has not yet been considered for the mining sector in an integrated manner, which makes polygeneration of great interest. The methodology that optimizes configuration of polygeneration systems for mine sites has not been reported before. The variety of mining circumstances, temporal variations in energy prices, institutional inertia, and conservatism in design for mines are some of the reasons for this. This paper reviews some aspects of precedent energy management practice in mineral operations, which highlights energy challenges characteristic of the sector and sets out the initial formulation of optimal mine site energy supply. The review indicates the additional benefits of energy supply systems for mine sites that concurrently meet all utilities. [ABSTRACT FROM AUTHOR]
- Published
- 2012
- Full Text
- View/download PDF
8. Identifying local stress increase using a relative apparent stress ratio for populations of mining-induced seismic events.
- Author
-
Brown, Laura and Hudyma, Martin
- Subjects
INDUCED seismicity ,MINING engineering ,STRAINS & stresses (Mechanics) ,EARTHQUAKE hazard analysis ,MINES & mineral resources ,MODULUS of rigidity ,STRESS-strain curves - Abstract
Copyright of Canadian Geotechnical Journal is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2017
- Full Text
- View/download PDF
9. La culture musicale des mineurs de Kirkland Lake: un premier aperçu.
- Author
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Gaudreau, Guy
- Subjects
- *
MINERS , *MUSIC appreciation , *ETHNIC groups , *MUSICIANS , *MINES & mineral resources , *MINING corporations , *TWENTIETH century , *HISTORY ,HISTORY of Ontario, Canada - Abstract
This article explores the musical culture of Kirkland Lake miners and considers one of its dimensions, as expressed by their musical practices, whether classical or pop, vocal or instrumental, performed at concerts or accompanying dances or parades. With access to the names and occupations of all the employees of two of the major mining companies in the city. Lake Shore and Wright-Hargreaves Gold Mines, we sought to determine if the miners were linked in one way or another to the different music events reported in the local paper, the Northern News, over the year of 1934. In our view, the diversity of musical practices observed could be explained by the presence of many ethnic communities in the mining workforce, and also by widely different working conditions, depending on whether a miner worked underground or at the surface. [ABSTRACT FROM AUTHOR]
- Published
- 2013
10. Estimating geometrical and mechanical REV based on synthetic rock mass models at Brunswick Mine
- Author
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Esmaieli, Kamran, Hadjigeorgiou, John, and Grenon, Martin
- Subjects
- *
MINES & mineral resources , *GEOGRAPHIC mathematics , *ROCK mechanics , *FRACTURE mechanics , *COMPRESSIBILITY , *ELASTICITY - Abstract
Abstract: This paper uses a case study from Brunswick Mine in Canada to determine a representative elementary volume (REV) of a jointed rock mass in the vicinity of important underground infrastructure. The equivalent geometrical and mechanical property REV sizes were determined based on fracture systems modeling and numerical experiments on a synthetic rock mass. Structural data collected in massive sulphides were used to generate a large fracture system model (FSM), 40m×40m×40m. This FSM was validated and subsequently sampled to procure 40 cubic specimens with a height to width ratio of 2 based on sample width from 0.05 to 10m. The specimens were introduced into a 3D particle flow code (PFC3D) model to create synthetic rock mass (SRM) samples. The geometrical REV of the rock mass was determined based on the number of fractures in each sampled volume (P30) and the volumetric fracture intensity (P32) of the samples. The mechanical REV was estimated based on the uniaxial compressive strength (UCS) and elastic modulus (E) of the synthetic rock mass samples. The REV size of the rock mass was determined based on a series of statistical tests. The T-test was used to assess whether the means of the samples were statistically different from each other and the F-test to compare the calculated variance. Finally, the coefficient of variation, for the synthetic rock mass geometrical and mechanical properties, was plotted against sample size. For this particular site the estimated geometrical REV size of the rock mass was 3.5m×3.5m×7m, while the mechanical property REV size was 7m×7m×14m. Consequently, for engineering purposes the largest volume (7m×7m×14m) can be considered as the REV size for this rock mass. [ABSTRACT FROM AUTHOR]
- Published
- 2010
- Full Text
- View/download PDF
11. DIAMONDS IN CANADA'S NORTH: A LESSON IN MEASURING SOCIO-ECONOMIC IMPACTS ON WELL-BEING.
- Author
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Fonda, Marc and Anderson, Erik
- Subjects
SOCIOECONOMICS ,MINERAL industries ,DIAMOND mining ,PUBLIC health ,ECONOMIC impact ,WELL-being ,ECONOMIC history ,MINES & mineral resources - Abstract
Copyright of Canadian Issues / Thèmes Canadiens is the property of Association for Canadian Studies and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2009
12. Multi-criteria evaluation of the socioeconomic impact of mining in Canada from a sustainable development perspective: a theoretical model.
- Author
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Gueye, El Hadj Matar, Badri, Adel, and Boudreau-Trudel, Bryan
- Subjects
SUSTAINABLE development ,ANALYTIC network process ,ANALYTIC hierarchy process ,MINES & mineral resources - Abstract
The socioeconomic impact of mining in Canada has positive and negative aspects. Effective evaluation of its impact suffers from the inadequacy of the criteria and indicators chosen to measure its sustainability and the limitations of the current means used to minimize the subjectivity of expert judgments. Constraints associated with legislation and standards governing mining activities must also be considered. In this study, a theoretical model is proposed for evaluating the socioeconomic impact of mining in Canada. This model combines the multi-criteria analysis methods known as the analytic hierarchy process and fuzzy integrated judgment. Based on a simulation, the model is able to take into account the subjectivity of expert judgments. In addition to reducing this subjectivity and allowing measurement of sensitivity, the model provided an overview of the progress achieved by a mine during its transition towards sustainable development. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
13. Mineral Processing in an Open Economy.
- Author
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Stollery, Kenneth R.
- Subjects
MINERAL industries ,MINES & mineral resources ,COPPER industry ,INDUSTRIES ,INDUSTRIAL productivity ,ECONOMICS ,COMMERCE - Abstract
The subsequent sections of the paper are organized as follows: In a model with perfectly malleable capital, we first demonstrate the Dasgupta result of independence of the level of processing from domestic preferences, a conclusion that follows from the standard free-trade condition that the domestic and foreign marginal rotes of transformation are equal. The alternative fixed capital model is then developed, and we describe the resulting time paths of extraction, processing, and mineral exports and show the relationship of processing capacity with the discount rate, The third section summarized the processing incentives in Ontario, one of Canada's largest mineral exporting provinces, and simulates the model with parameters derived from the Canadian copper industry. Tentative conclusions are offered in the final section. [ABSTRACT FROM AUTHOR]
- Published
- 1987
- Full Text
- View/download PDF
14. SUBSTITUTION POSSIBILITIES FOR UNPRICED NATURAL RESOURCES: RESTRICTED COST FUNCTIONS FOR THE CANADIAN METAL MINING INDUSTRY.
- Author
-
Halvorsen, Robert and Smith, Tim R.
- Subjects
ECONOMIC development ,NATURAL resources ,ELASTICITY (Economics) ,MINES & mineral resources ,NONRENEWABLE natural resources ,CONSERVATION of natural resources ,METAL industry ,VERTICAL integration - Abstract
The effects of resource depletion on economic growth depend critically on the elasticities of substitution between non-renewable natural resources and reproducible inputs. Estimation of the elasticities of substitution for natural resources has been hindered by the absence of data on their prices, which results from the prevalence of vertical integration in natural resource industries. In this paper we use the theory of restricted cost functions to develop a general procedure for estimating substitution possibilities for unpriced inputs. Estimation of the model with data for the Canadian metal mining industry indicates that the elasticities of substitution for the natural resource, metallic ore, are equal to unity. [ABSTRACT FROM AUTHOR]
- Published
- 1986
- Full Text
- View/download PDF
15. LETTING IT GO TO WASTE.
- Author
-
Kirby, Jason
- Subjects
NATURAL resources ,ECONOMICS ,ENVIRONMENTAL policy ,FACTORS of production ,RAW materials ,FORESTS & forestry ,AGRICULTURAL resources ,MINES & mineral resources ,INTERNATIONAL trade - Abstract
This article reports on the natural resources in Canada and the dilemma surrounding the use and abuse of them. Canadians have let their harvesting of natural products dwindle as they tried to diversify industry, but many countries around the world are expanding their imports of natural products. The Conference Board of Canada's "Canada Project" seeks to address the issues in the forestry, mining and agri-food industries, among others.
- Published
- 2006
16. Emplacement of sharp-walled sulfide veins during the formation and reactivation of impact-related structures at the Broken Hammer Mine, Sudbury, Ontario.
- Author
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Hall, M.F., Lafrance, B., and Gibson, H.L.
- Subjects
SULFIDE minerals ,VEINS ,PLATINUM group ,SULFIDES ,MINES & mineral resources ,HAMMERS ,PELVIC floor - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2020
- Full Text
- View/download PDF
17. The characteristic properties of waste rock piles in terms of metal leaching.
- Author
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Liu, Zhong-Sheng, Huang, Cheng, Ma, Liang, Dy, Eben, Xie, Zhong, Tufa, Kidus, Fisher, Elizabeth A., Zhou, James, Morin, Kevin, Aziz, Mike, Meints, Cody, O'Kane, Mike, and Tallon, Lindsay
- Subjects
- *
ROCK properties , *MINE drainage , *SILVER mining , *MINES & mineral resources , *METALS - Abstract
Surface/ground waters could be polluted when rain-water and/or snow-melt water infiltrate through waste rock piles at mine sites and dissolve secondary minerals (salts) from rock surfaces. It is important to reduce solute loading by the optimal configuration of waste rock piles. This requires the proper definition and determination of the characteristic properties of waste rock piles in terms of metal leaching and, in particular, rate control mechanisms and scaling laws, and their dependence upon configuration variables. For revealing these characteristic properties this paper proposes a pile-scale C-Q relation: C = C s (1 − e-P/Q), (P ≡ kλβψ), where C and C s are respectively solute concentration and particle's saturation concentration, Q is the flow rate of the water through a waste rock pile, k represents the effective or average dissolution coefficient of a mineral specie from rock surfaces, β represents rock pile depth, λ represents the ratio of the sum of the surface areas of rocks to the volume that the rocks occupy, and ψ is the sum of the cross-sections of water-flow channels in a waste rock pile. The two characteristic properties revealed by the C-Q relation are: (1) P, the product of k, λ, β, and ψ (P ≡ kλβψ), which is the characteristic property of a waste rock pile in terms of metal leaching, named here the solute production potential; and (2) the ratio of P to Q, P/Q, a non-dimensional number, designated as α (α ≡ P/Q), named here the rate control quotient, which is the scaling law and the rate control mechanism indicator. The value of α quantitatively indicates what controls the rate of mineral dissolution, and it also relates smaller-scale metal-leaching testing results to their corresponding full scales. When α becomes small, say α < 0.5, the rate of solute production potential P becomes in control, and the solute loading is nearly independent of Q; when α becomes larger, say α > 2.5, solute concentration would become close to its saturation concentration C s , and Q determines solute loading (that is, the solute loading is proportional to Q). When 0.5 < α < 2.5, both Q and P are in control, a mixed control mechanism. The 20 years of measurements of mine drainage chemistry from the main waste rock piles at the Equity Silver mine, BC, Canada, are used to illustrate how to determine the two characteristic properties P and α, and how well they are able to describe the waste rock piles in terms of metal leaching. Unlabelled Image • Analysis of rate-control mechanisms of mineral dissolution from waste rock piles. • Definition and determination of the characteristic properties of waste rock piles. • A non-dimensional quantity, rate-control quotient α is defined. • α quantitatively indicates the rate-control mechanisms of metal leaching. • α can act as a scaling law relating lab-scale leaching testing to full scale testing. [ABSTRACT FROM AUTHOR]
- Published
- 2019
- Full Text
- View/download PDF
18. BOOM AND BUST.
- Author
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Sanford, Jeff
- Subjects
INDUSTRIES ,SPECIALTY stores ,ELECTRONIC industries ,PRECIOUS metal industries ,MINES & mineral resources ,TOBACCO industry - Abstract
Presents charts rating the best and worst industries based on one-year return, profitability and revenue growth. Best and worst industries by 1-year return, specialty stores and electronic equipment respectively; Best and worst industries by profitability, tobacco and electronic manufacturing services, respectively; Best and worst industries by revenue growth, precious metal/mining and heavy electric equipment, respectively.
- Published
- 2005
19. Robots with a keen eye for shape and colour.
- Author
-
Macklem, Katherine
- Subjects
ROBOTS ,DIAMONDS ,GEMS & precious stones ,MINES & mineral resources ,DEVELOPING countries - Abstract
Machines programmed to cut and polish diamonds. Uri Ariel places on the table a tidy package made of waxy-white paper folded into a rectangle the size of a small envelope. He gingerly opens it to reveal dozens of shiny rough diamonds. Worth $137,000, they range in size from one to 2.5 carats. "Pick one," he says. Ariel, president and CEO of HRA Investments Ltd., operates the first diamond cutting and polishing operation of its kind in North America. Almost the entire global supply of diamonds is cut and polished by people hunched over thick magnifying glasses, many located in Third World countries. But here, in a 10- by 12-foot room on the 21st floor of a downtown Vancouver office tower, are more than two dozen appliances, each smaller than a home sewing machine. They are robots, programmed to cut and polish diamonds. "This," says Ariel, "is the future.".
- Published
- 2003
20. Northern Reclamati on in Canada: Contemporary Policy and Practice for New and Legacy Mines.
- Author
-
Dance, Anne
- Subjects
RECLAMATION of land ,MINES & mineral resources ,MINES & mineral resources policy ,INDUSTRIAL waste site remediation ,DIAMOND mining - Abstract
This article discusses the factors shaping contemporary reclamation regimes in the Yukon, the Northwest Territories, Nunavut, northern Labrador, and Nunavik in northern Quebec. It distils policy documents, laws, research reports, and newspaper articles for a clear overview of current policy and practice in the North and shows that no overarching vision informs reclamation planning. Instead of direction from Ottawa, responsibility for policy-making now largely sits with provincial, territorial, and regional governments along with local land and water boards. Efforts to mitigate the impacts of new and legacy mines are complicated by the highly site-and case-specific nature of reclamation; the lack of a clear, ambitious technical and regulatory definition of reclamation; and the jurisdictional overlap and governance issues associated with cleanup. Addressing these wider policy challenges in the North is crucial to meet the expansive, expensive demands of mine reclamation. As well, remediation efforts that draw on traditional knowledge and encourage local involvement can mitigate and manage some of the worst impacts of northern resource development. Policy reform such as strengthened regulations and more rigorous government enforcement will help facilitate this. However, reclamation can also exacerbate inequality and environmental problems. Effective reclamation demands more than a particular technological fix or planning strategy; it involves a candid discussion of the goals and limitations of reclamation projects, both past and present. This article has been summarized in an accessible up-todate poster and will be of interest to concerned parties grappling with a plethora of reclamation regulatory bodies and programs. [ABSTRACT FROM AUTHOR]
- Published
- 2015
21. Economic policy.
- Subjects
UNEMPLOYMENT ,PRICE inflation ,WAGE increases ,MINES & mineral resources ,TAX incentives ,ECONOMIC policy - Abstract
The article focuses on the economic policy of Canada as of November 2007. The country has reportedly low unemployment rate which might result in an inflation caused by the business sector wage growth of 5.7% during the second quarter of 2007. Finance Minister Jim Flaherty encourages investments in imported technology, which he considers as a substitute for low-cost labor. It is also mentioned that the Liberal government of British Columbia has proposed a mining plan, which details tax incentives and mining projects.
- Published
- 2007
22. THE COLD RUSH.
- Author
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Bourne Jr., Joel K. and Raygorodetsky, Gleb
- Subjects
PETROLEUM reserves ,MINES & mineral resources ,GOLD mining ,DIAMOND mining - Abstract
The article focuses on the energy and mineral resources mining in the Arctic. Topics include the natural gas deposits in Bovanenkovo in Russia which are collected by energy company Gazprom, Norway's oil and gas ventures in Barents Sea, and the diamonds, gold and iron mined in Nunavut and Northwest Territories of Canada.
- Published
- 2016
23. Consultation and remediation in the north: meeting international commitments to safeguard health and well-being.
- Author
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Banfield, Laura and Jardine, Cynthia (Cindy) G.
- Subjects
PRIMARY health care ,WELL-being ,ENVIRONMENTAL remediation ,MINES & mineral resources ,MEDICAL care - Abstract
Background. International commitments exist for the safeguarding of health and the prevention of ill health. One of the earliest commitments is the Declaration of Alma-Ata (1978), which provides 5 principles guiding primary health care: equity, community participation, health promotion, intersectoral collaboration and appropriate technology. These broadly applicable international commitments are premised on the World Health Organization's multifaceted definition of health. The environment is one sector in which these commitments to safeguarding health can be applied. Giant Mine, a contaminated former gold mine in the Northwest Territories, Canada, represents potential threats to all aspects of health. Strategies for managing such threats usually involve an obligation to engage the affected communities through consultation. Objective. To examine the remediation and consultation process associated with Giant Mine within the context of commitments to safeguard health and well-being through adapting and applying the principles of primary health care. Methods. Semi-structured interviews with purposively selected key informants representing government proponents and community members were conducted. Results. In reviewing themes which emerged from a series of interviews exploring the community consultation process for the remediation of Giant Mine, the principles guiding primary health were mapped to consultation in the North: (a) "equity" is the capacity to fairly and meaningfully participate in the consultation; (b) "community participation" is the right to engage in the process through reciprocal dialogue; (c) "health promotion" represents the need for continued information sharing towards awareness; (d) "intersectoral collaboration" signifies the importance of including all stakeholders; and (e) "appropriate technology" is the need to employ the best remediation actions relevant to the site and the community. Conclusions. Within the context of mining remediation, these principles form an appropriate framework for viewing consultation as a means of meeting international obligations to safeguard health. [ABSTRACT FROM AUTHOR]
- Published
- 2013
- Full Text
- View/download PDF
24. TARHANDS: A MESSY MANIFESTO.
- Author
-
CARIOU, WARREN
- Subjects
OIL sands ,MINES & mineral resources ,CANADIANS ,GOVERNMENT information ,PETROLEUM geology - Abstract
An essay is presented on the physical state of the Athabasca oil sands mining site in Canada. The author thinks that the lack of corporate and government information and the reluctance of the residents to face the results of their actions thwart the physical reality of the mining site development. The essay also tries to reveal the psychological structures that limit Canadians' awareness of the situation.
- Published
- 2012
- Full Text
- View/download PDF
25. Evolution of the Hydraulic Conductivity of Reclamation Covers over Sodic/Saline Mining Overburden.
- Author
-
Meiers, Greg P., Barbour, S. Lee, Qualizza, Clara V., and Dobchuk, Bonnie S.
- Subjects
SOIL permeability ,RECLAMATION of land ,FREEZE-thaw cycles ,MINES & mineral resources - Abstract
The evolution of the field saturated hydraulic conductivity of four covers located on a reclaimed saline-sodic shale overburden from oil sands mining is presented. Three covers consisted of a surface layer of peat/glacial topsoil over a mineral, soil. and one cover was a single layer of mixed peat and mineral soil. Measurements of the field saturated hydraulic conductivity of the cover and shale materials were made with a Guelph permeameter between 2000 and 2004. The hydraulic conductivity of the cover materials in the multilayered covers increased by one to two orders of magnitude over the first few monitoring seasons. The hydraulic conductivity of the single-layer cover system, which was placed three years before the multilayered covers, marginally increased from 2000 to 2002 and then remained relatively unchanged. The hydraulic conductivity of the shale underlying all four covers increased approximately one order of magnitude. Soil temperature measurements indicated that one freeze/thaw cycle occurred each year within all cover soils and the surficial overburden. This suggests that freeze/thaw effects were the cause of the observed increases in hydraulic conductivity, as previously observed by other researchers working on compacted clays. [ABSTRACT FROM AUTHOR]
- Published
- 2011
- Full Text
- View/download PDF
26. Multi-scale interactions of geological processes during mineralization: cascade dynamics model and multifractal simulation.
- Author
-
Yao, L. and Cheng, Q.
- Subjects
MINERALS ,MINES & mineral resources ,MULTIFRACTALS ,SIMULATION methods & models ,DYNAMICS ,PROBABILITY theory - Abstract
Relations between mineralization and certain geological processes are established mostly by geologist's knowledge of field observations. However, these relations are descriptive and a quantitative model of how certain geological processes strengthen or hinder mineralization is not clear, that is to say, the mechanism of the interactions between mineralization and the geological framework has not been thoroughly studied. The dynamics behind these interactions are key in the understanding of fractal or multifractal formations caused by mineralization, among which singularities arise due to anomalous concentration of metals in narrow space. From a statistical point of view, we think that cascade dynamics play an important role in mineralization and studying them can reveal the nature of the various interactions throughout the process. We have constructed a multiplicative cascade model to simulate these dynamics. The probabilities of mineral deposit occurrences are used to represent direct results of mineralization. Multifractal simulation of probabilities of mineral potential based on our model is exemplified by a case study dealing with hydrothermal gold deposits in southern Nova Scotia, Canada. The extent of the impacts of certain geological processes on gold mi- neralization is related to the scale of the cascade process, especially to the maximum cascade division number n
max . Our research helps to understand how the singularity occurs during mineralization, which remains unanswered up to now, and the simulation may provide a more accurate distribution of mineral deposit occurrences that can be used to improve the results of the weights of evidence model in mapping mineral potential. [ABSTRACT FROM AUTHOR]- Published
- 2011
- Full Text
- View/download PDF
27. Regulation & Legitimacy in the Mining Industry in Africa: Where does Canada Stand?
- Author
-
Campbell, Bonnie
- Subjects
MINERAL industries ,INTERNATIONAL business enterprises ,MINES & mineral resources ,NATURAL resources ,INTERNATIONAL cooperation - Abstract
There are more than 1,000 mining companies listed on Canadian stock exchanges, more than any other country and, as such, represent the most important source of investment in mining in Africa. This article provides a preliminary evaluation of the experience and report of the Canadian National Roundtables on Corporate Social Responsibility (CSR). It does so in the context of the surge of Canadian investment in mining in Africa and of increasing public awareness of the negative impacts of the activities of Canadian mining enterprises. It examines the issues of resource governance and the 'securitisation' of mining activities. The recommendations favouring adoption of a Canadian set of CSR Standards for Canadian extractive-sector companies operating abroad is contextualised in the global expansion of transnational mining investment that since the 1990s led to increasing conflicts with local communities. [ABSTRACT FROM AUTHOR]
- Published
- 2008
- Full Text
- View/download PDF
28. A New StapIes Industry? Complexity, Governance and Canada's Diamond Mines.
- Author
-
Fitzpatrick, Patricia J.
- Subjects
MINES & mineral resources ,MINERAL industries ,MINERALS ,NATURAL resources - Abstract
The article discusses the Canada's diamond mines and the complexities associated with mineral development. The author mentions that the new approach to the northern staples-based economy involves the incorporation of a group of policy actors with agendas, needs and requirements. He explains that the new diamond projects are proceeding in a way that is different from historical practices of staples based development in the mineral sector.
- Published
- 2007
- Full Text
- View/download PDF
29. An inventory of abandoned mining exploration sites in Nunavik, Canada.
- Author
-
Duhaime, Gérard, Bernard, Nick, and Comtois, Robert
- Subjects
MINERAL industries ,INDUSTRIES ,MINES & mineral resources ,NATURAL resources - Abstract
Copyright of Canadian Geographer is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2005
- Full Text
- View/download PDF
30. Stratigraphy, geochronology, and geochemistry of the Georgie River area, northwest British Columbia, and implications for mineral exploration.
- Author
-
Evenchick, Carol A., McNicoll, Vicki J., and Snyder, Lori D.
- Subjects
ROCK analysis ,STRATIGRAPHIC correlation ,JURASSIC paleoecology ,TRIASSIC stratigraphic geology ,VOLCANOLOGICAL research ,MINES & mineral resources - Abstract
Copyright of Canadian Journal of Earth Sciences is the property of Canadian Science Publishing and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
- Published
- 2004
- Full Text
- View/download PDF
31. SH*T HAPPENS BUT YOU MOVE ON.
- Author
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McClearn, Matthew
- Subjects
MINES & mineral resources - Abstract
The article discusses the actions of Margaret Kent, Ross Burns, WIlliam Sheridan, and other executives of Century Mining Corp. Century is required by law to restore an abandoned mining property in Val-d'Or in the province of Quebec, Canada. However Kent, Sheridan, and Burns are all alumni of a previous mining firm that went bankrupt and left taxpayers with hundreds of millions of dollars of cleanup costs.
- Published
- 2009
32. The Return of King Coal.
- Author
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Thomas, David
- Subjects
MINES & mineral resources ,METHANE ,INDUSTRIALIZATION - Abstract
Focuses on the mining in Fernie, British Columbia. Number of coal-bed methane test wells in British Columbia; Industrialization of the British Columbia Rocky Mountains; Adoption of a resolution demanding that the government stop any auction of coal-bed methane rights.
- Published
- 2004
33. ONE LAST WHISTLE.
- Subjects
COAL mining ,COAL miners ,MINERS ,MINES & mineral resources ,EMPLOYMENT - Abstract
Offers observations on the closing of the last underground coal mine in Cape Breton, Nova Scotia in 2001. Reflections of miners regarding the job; Reasons why the mine is being closed; Thoughts on the efforts of the miner to find new careers.
- Published
- 2001
34. RIGHT PLAY, RIGHT TIME.
- Author
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Macklem, Katherine
- Subjects
GOLD mining ,GOLD ,MINES & mineral resources ,CORPORATE finance ,STOCK prices ,FINANCE - Abstract
When Robert McEwen got up to speak at his company's annual meeting earlier this month, his first words were: "Gold is money." It's become a mantra for the soft-spoken chairman and chief executive of Goldcorp Inc. In a market that's lost 50 per cent in value since its September 2000, peak McEwen's company's stock price has doubled, twice, in the past two years. McEwen's firm is a mid-size Canadian mining company with operations in North Dakota and Saskatchewan. It has stakes in a handful of junior exploration companies. But its crown jewel is in northwestern Ontario: the Red Lake mine, first developed in the 1940s. Today, Red Lake is the world's richest gold mine. But before riches and royalty entered his life, McEwen had to overcome major hurdles. In his bid to extract the gold he believed all along was at the Red Lake site, he faced lawsuits, a family feud, a debilitating strike and a death threat, not to mention an investment community that didn't believe in him.
- Published
- 2003
35. A SIMPLER ENVIRONMENTAL REVIEW.
- Author
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McCLEARN, MATTHEW
- Subjects
ENVIRONMENTAL impact analysis ,ENVIRONMENTAL policy ,MINES & mineral resources ,MINES & mineral resources & the environment - Abstract
The article looks at environmental assessment of proposed mining projects in Canada, as of 2013. It outlines the adoption of the 2012 Canadian Environmental Assessment Act (CEAA), saying it was designed to streamline assessments and prevent project delays. It discusses Taseko Mines's proposed Prosperity Mines project in British Columbia, whose review under the CEAA is due to be completed in November 2013.
- Published
- 2013
36. IAN DELANEY.
- Author
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Castaldo, Joe
- Subjects
CHIEF executive officers ,MINING corporations ,MINES & mineral resources ,MANAGEMENT - Abstract
The article presents a biographical profile of Ian Delaney, executive chairman of Sherritt International. The article presents brief statements from Delaney, including his thoughts on the loss of strength in the Canadian mining business and the Alternative Investment Market in London, which has become the center of international resource financing. Delaney has enjoyed a lifelong friendship with Fidel Castro.
- Published
- 2008
37. PIXELS, NOT PICKAXES.
- Author
-
Macklem, Katherine
- Subjects
MINERAL industries ,CONTESTS ,INDUSTRIES ,MINES & mineral resources ,PROSPECTING ,GEOCHEMISTRY consultants - Abstract
This article discusses how Nicolas Archibald responded to a global challenge to researchers by Canadian mining company Goldcorp Inc. to find gold at an old mine in northern Ontario. When a Canadian mining company issued a global challenge to researchers in 2000 to find gold at an old mine in northern Ontario, Nicholas Archibald knew this was an opportunity not to be missed. But instead of pulling out his prospecting gear and heading into the bush at Goldcorp Inc.'s Red Lake property, the geologist, who'd never been to Canada, stayed home -- on the other side of the world in West Perth, Australia. There, he and his team flicked on their computers and downloaded data posted on the Goldcorp website. That initiative would eventually put Archibald in the position he's in now: with a small group of geologists, geophysicists, geochemists and geological modellers, he is helping bring the mining industry into the technological era. In a move that shocked the secretive world of mining, Goldcorp had revealed 50 years worth of data -- everything it had -- on Red Lake, a productive mine in the 1950s that by 2000 many considered depleted. Archibald's consulting firm, then called Fractal Graphics and now Geoinformatics Exploration Inc., used sophisticated software to create 3-D electronic models of underground rock formations, pinpointing five sites where they thought Goldcorp would find new veins of gold. The winner's take was peanuts -- just US$105,000 -- but for Archibald the real prize would be exposure. Almost needless to say, he won the contest. In the 2 1/2 years after the competition, as Goldcorp drilled and tested and eventually confirmed Geoinformatics' predictions, its share price more than quadrupled in value. Red Lake has emerged as the world's most lucrative gold mine -- and it turned out to be a motherlode for Archibald, too. Mining is among the world's oldest industries -- and one of the last to enter the electronics age.
- Published
- 2005
38. Flight of the Gold Bugs.
- Author
-
Coxe, Donald
- Subjects
PRICE inflation ,GOLD industry ,PETROLEUM industry ,ECONOMIC forecasting ,MONEY ,INTEREST rates ,MINES & mineral resources - Abstract
This is an article on inflation in Canada and how it affects the price of gold. In 1987, gold lovers were ubiquitous, shrieking that inflation lurked dangerously as the precious metal hit US $500 per ounce, up 55 per cent from the previous year. But inflation didn't return.Today, there's talk of inflation even among the see-no-inflation-evil Wall Street economists, from whom rarely was heard a discouraging word for all those years. To listen to the gold bugs, the return of their kind of inflation (the Bram Stokerish stock market-crashing kind) is guaranteed by that big price tag for oil. That rally coincided with the release of powerful U.S. economic performance statistics (particularly the blowout nonfarm payroll report for April, which confirmed the job-gain trend), and with softening economic reports from Europe, China and Australia.
- Published
- 2004
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