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http://www.lostrivers.ca/points/BrickWorksquarry.jpg&imgrefurl)
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| 1. East Side of the Don Valley(By BC) |
2. The capture of the whole brickwork (Designed By BC, Picture taken from Mr.P)
1. The mining place of the Don Valley Brickwork.
As shown in figure 1 and 2, the North and South slope of the Don Valley has not been artificially changed since it was first formed. The area in the circle used to be at the same height as the top of the north and east slope. Change comes after the establishment of the open-pit mine. After the mine was founded, the miners began to extract and dig the area in order to get the mine they want.
2. The use of open-pit mining
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| Example Open pit mining (http://www.bisbeeturquoise.com/Images/BisbeeLavenderPit.jpg&imgrefurl) | | | | | | | |
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Open-pit mining is a cut or excavation made at the surface of the ground for the purpose of extracting ore and which is open to the surface for the duration of the mine's life. The Don Valley Brick Works is a typical open-pit mining site. When the Taylor Brothers first founded the site, they found out that the minerals lied close to the surface, but reach deep to the underground. So, the best way to extract minerals and save money is to use open-pit mining. Underground mining compared to open-pit mining, not only waste money, but also failed to extract minerals since the miners can only extract the minerals buried deep inside the earth.
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Example Open Pit Mining Cross Section.
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| (http://www.mbmg.mtech.edu/graphics/env-berkeley-cross07.gif&imgrefurl) |
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| Cross Section(From Mr.P) |
