РефератыИностранный языкMiMining In Canada Essay Research Paper The

Mining In Canada Essay Research Paper The

Mining In Canada Essay, Research Paper


The Importance of Mining Industry


The importance of mining is definitely significant to Canada.


Mining, is an important industry, and Canadians are very advanced


in their mining technology, but during the mining process, there


is certain level of pollution produced. The Canadian government


and the mining companies have very good plans and controls toward


this problem, while ensuring the smooth running of the


industries, and also helping to create strong economy and


employment.


The world of today could not exist without mineral products.


Canada produces about 60 minerals and ranks first among producing


countries1. As well, Canada is the largest exporter of minerals,


with more than 20 per cent of production shipped to world


markets2. In a typical year, the mining industry is responsible


for almost 20 per cent of Canada’s total export earnings3 (See


Appendix A). As for the employment rate, over 70 per cent of the


mines are owned by Canadians and approximately 108,000 Canadians


are directly employed in the mining industry4. Mining is very


important in Canadian life. Not only do the products power the


family car and heat the family home, the manufacturing sector,


the high tech industries and even the better known resource


industries are all dependent, in some way, on the mining


industry. The mining industry will continue to be an important


support to the economy.


Mining is taking full advantage of the quick expansion of


computers and microelectronics. These technologies are found in


nearly every aspect of mineral development activity – from


exploration methods, through production, mineral processing and


even marketing. Computers and related equipment now have a lot


of different applications in geophysical logging, geochemistry,


geological mapping and surface contouring5. At the mine planning


stage, the job of designing a mine is now greatly simplified by


automation. Through the use of advanced software, geological


models can be produced from drill hole data. Computers are also


being used to develop plans for mine expansion, develop mining


schedules for yearly, quarterly and in some cases, weekly


operations. At the operating stage, this new technology is


everywhere6. Both in research and operational applications,


automated mine monitoring systems now determine immediate


information on the status of equipment in underground or remote


locations.


Canada produces its 60 mineral products from roughly 300 mines


across the country7. Before these products can make the trip


from mines to the marketplace, they must be searched for, staked,


tested, analyzed, developed. There are many difference methods


to mine for minerals, an “open pit” mine is one of the method we


use today. The ore – waste material along with the minerals, is


recovered directly from the surface. Drilling rigs are used to


drill holes into the ore areas and blasting charges will be set


in them to break loose the ore. The ore: first stop is at the


primary crushing station, often located underground, where the


large chunks of ore are crushed to a finer size. Further


crushing is required prior to sending the ore to the mill where


it is ground to a fine powder8. The purpose of crushing and


grinding is to free the minerals from the rock. Treatment may


consist of gravity or chemical concentration techniques.


The end product of the mill is a concentrate, whereby the


percentage of valuable mineral has been increased by a factor of


10 to as much as 50 times contained in the ore9. The


concentration operation may be complicated or relatively simple,


depending on the mineral content of the ore. Milling processes


are designed to separate the valuable minerals from the undesired


minerals. Although the milling process separates valuable


minerals from waste, it does not actually recover the metals in


final form. The smelting operation treats the metal-bearing


concentrate further, up-grading it to purer form called “matte”.


Basically: The ore concentrates are mixed with other materials


and treated at high temperatures to change the material to other


chemical forms. The metal in the matte can be separated further.


Further treatment is applied to the final purification of the


metal and finishing to the standards required in the metal-using


industries.


Mining, as we understanding, is a very important industry. But


there are underlying dangers to our environment. Mining


companies and the government have realized this problem, and


regulations and controls have been applied to it. The major


environmental problem usually results from the processing and


transportation of mineral products rather than from the actual


mining process. Example: when an oil spill has occurred in the


ocean, the problem caused to the environment is very big, because


gallons of oil is spilling over the ocean’s surface, resulting in


the death of many ocean organisms, and in the pollution of


the ocean. (See Appendix B) In this article, it shows how much


an oil spill can endanger the environment. To prevent this


problem, special attention is given by the captain to watch out


for other ships and rocks – since this huge tanker ship


would have to take two kilometres to come to a full stop.


Moreover, mining also is an indirect cause to acid rain – one of


a very important environmental problems. Acid rain


unquestionably contributed to the acidification of lakes and


streams, causing problems with the agricultural crops and forest


growth, and has the potential to contaminate drinking water


systems 10. Sulphur dioxide is responsible for about two thirds


of the acidity in precipitation; the other one third is from


nitrogen oxide. The major source of sulphur dioxide in eastern


Canada is nonferrous metal smelters, which produce more than 40


per cent of the region’s total emission11 – where smelting is one


of the important processes of refining minerals. Over the past


decade, sulphur dioxide emissions at some eastern Canadian


nonferrous operations have been significantly reduced. For


example, emission at the Inco smelter in Copper Cliff were


reduced from 5500 tonnes per day in 1969 to 2270 tonnes per day


in 1980. The Falconbridge nickel smelter, which emitted about


940 tonnes per day in 1969, now emits about 420 tonnes per day12.


In eastern Canada, more than 50 per cent of the sulphur dioxide


comes from the United States, while Canada’s contribution to


total American deposition is only about 10 per cent13. The


Canadian government has noticed this problem, and has setup a


Memorandum of Intent signed by the two governments setting up the


framework for negotiation of a transboundary air pollution


agreement. This agreement ensures both countries control their


mission and makes sure they do not cause any damage to the


environment of the other country. As well, not only the


government is trying to control t

his problem, smelting companies


are also paying a large amount of money to control pollution


and reducing sulphur dioxide emissions. Department of


environment (DOE) estimates that a capital investment of $620


million (in 1980 $) would be required by eastern Canadian


nonferrous smelters to reduce emissions by 57 per cent. The


cost of an 80 per cent reduction is estimated to be $1.0 billion


14.


The environment problem happens in the mine itself as well,


companies have added newer, larger and more effective filters on


their chimneys to reduce the amount of damaging fumes that


previously had been released into the atmosphere. Also, money


has been spent on research to plant vegetation on the mine


tailings so that the dust is held in place and not blown around


to damage the environment. Companies are becoming more and more


aware of the problem today, and government agencies are also


trying to keep our environment clean and heathy, and have set out


some guidelines. (See Appendix C). Mining process, and mineral


exploration, requiring access to large areas of lands, if


minerals are discovered, mining – especially “open pit” mining -


can degrade the immediate environment and have off-property


effects on water quality. To minimize this problem, most of the


mines in Canada are found in places far from the people. From


all of these examples, Canadian companies and the government are


investing money, trying very hard to continue taking care of our


environment, and their efforts are certainly helping to keep the


environment clean and heathy.


Our economy, values of exports, employment rate, and to our


everyday needs in society – we are always direct or indirectly


dependent on the mining industry. But as we discover, the mining


industry does contribute pollution to the environment.


Nevertheless government and mining companies have realize this


problem, and have contributed money and effort to correct it,


helping to keep the environment clean and heathy, also ensuring


this industry will be running smoothly and bringing in money to


create a good economic future.


Appendix A


Canada: Value of Mineral Exports


Mineral Value ($000)


Petroleum 5,167,589


Iron and Steel 3,606,417


Natural Gas 3,168,733


Gold 2,863,568


Aluminum 2,517,303


Coal 1,868,958


Nickel 1,033,422


Copper 1,323,711


Sulphur 1,134,273


Uranium 841,430


Potash 828,247


Zinc 677,248


Asbestos 412,525


Silver 386,092


All other minerals 2,636,124


Total 28,464,640


Source: Energy, mines and Resources Canada – 1986


Appendix B


The following attached articles are concern the damage created by


oil spills, and shows what the government has done to help this


problem. In the article “Worse than disastrous”, the damage to


the environment is more that what is expected. The wildlife are


being killed. For example, 350,000 to 390,000 sea birds have


been killed after the spill. From this article, we realize how


much an oil spill can destroy the environment, and this is partly


related to the mining industry because it is necessary to


transport these minerals. For the second article “Tanker captain


charged”, which took place in Alaska, the captain of the tanker


was charged. Due to the influence of alcohol.


The government has taken this case very seriously, and they hope


that from this case other captains would learn the consequence of


being too careless.


Industry’s Commitment Principles Summary


Appendix C


1. Solutions to environmental problems are not simple. To


resolve such problems, government and industry must co-operate


fully.


2. Government policy in matters of environmental protection


should be developed on scientifically based need, sound economics


and conservation of basic resources.


3. Many reasonable regulations and controls are already in


place. Care must be taken that these or new controls do not


become unnecessarily rigid or confusing and overlapping.


4. The industry accepts its responsibility to work within


certain pollution control standards, but these standards should


be of significant benefit, practical and technologically sound.


5. The implementation of sound environmental policies is not


without economic considerations. Society must judge the trade-


off among economic, social and ecological imperatives.


Endnote


1Mining, what it means to Canada (Ottawa: The mining


association of Canada, 1988). pp. 1


2Mining, what it means to Canada (Ottawa: The mining


association of Canada, 1988). pp. 1-2


3Mining, what it means to Canada (Ottawa: The mining


association of Canada, 1988). pp. 1-2


4Mining, what it means to Canada (Ottawa: The mining


association of Canada, 1988). pp. 1-2


5Mining, what it means to Canada (Ottawa: The mining


association of Canada, 1988). pp. 6-7


6Culter, Phil, Mining in Canada (St. Catharines: Vanwell


Publishing Limited, 1990). pp. 15


7Mining, what it means to Canada (Ottawa: The mining


association of Canada, 1988). pp. 17-19


8Mining, what it means to Canada (Ottawa: The mining


association of Canada, 1988). pp. 19-21


9Culter, Phil, Mining in Canada (St. Catharines: Vanwell


Publishing Limited, 1990). pp. 28-30


10Mineral Policy – A Discussion Paper (Ottawa: Energy, Mines


and Resources Canada, 1981). pp. 99


11Mineral Policy – A Discussion Paper (Ottawa: Energy, Mines


and Resources Canada, 1981). pp. 99


12Mineral Policy – A Discussion Paper (Ottawa: Energy, Mines


and Resources Canada, 1981). pp. 99


13Mineral Policy – A Discussion Paper (Ottawa: Energy, Mines


and Resources Canada, 1981). pp. 100-101


14Mineral Policy – A Discussion Paper (Ottawa: Energy, Mines


and Resources Canada, 1981). pp. 101


Bibliography


Bodey, Hugh. Mining. London: B.T. Batsford Ltd, 1976.


Culter, Phil. Mining in Canada. St. Catharines: Vanwell


Publishing Limited, 1990.


Goldsmith, Edward. Imperiled Planet. Cambridge, Massachusetts:


The MIT Press, 1990.


Mineral Policy – A Discussion Paper. Ottawa: Energy, Mines and


Resources Canada, 1981.


Mining, What it means to Canada. Ottawa: The Mining


Association of Canada, 1988.


Smith, Pat. Mineral Exploration. Ontario: Queen’s Printer for


Ontario, 1991.


Bibliography


Bodey, Hugh. Mining. London: B.T. Batsford Ltd, 1976.


Culter, Phil. Mining in Canada. St. Catharines: Vanwell


Publishing Limited, 1990.


Goldsmith, Edward. Imperiled Planet. Cambridge, Massachusetts:


The MIT Press, 1990.


Mineral Policy – A Discussion Paper. Ottawa: Energy, Mines and


Resources Canada, 1981.


Mining, What it means to Canada. Ottawa: The Mining


Association of Canada, 1988.


Smith, Pat. Mineral Exploration. Ontario: Queen’s Printer for


Ontario, 1991.

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