Geography of Canada Mining The extraction of naturally occurring minerals from the Earth.
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Transcript of Geography of Canada Mining The extraction of naturally occurring minerals from the Earth.
Mining
1.What do we Mine?
2.Open Pit Mining
3.Underground (Shaft) Mining
4.Issues Facing Mining in Canada
5.Improving Canada’s Mining Industry
What Do we Mine in Canada?
What: Potash
Where: Sask.
For: Salt, Fertilizer
What: Copper
Where: Ontario
For: Pipes
What: Zinc Where: New Br.For: Brass
What Do We Mine in Canada?
What: Diamonds
Where: NWT
For: “bling” & industrial cutters
What: Gold
Where: NWT
For: “bling” What: CoalWhere:MaritimeFor: Fuel
What do we mine in Canada?
Source: http://www.planete-energies.com/Frontoffice/Players/PopupPlayerImage.aspx?directory=img_2_4_2_extract02&pageFrom=encyclo
Oil pumped from under the ocean…….. Hibernia Drilling Rig platform off the coast of NFL
oil
Open Pit Mining
This method is used when the deposit is close enough to the surface for mass removal of ore to be economically viable.Its simply a big hole in the ground
where the mineral is removed
Open Pit Mining Impacts
• Destruction of Vegetation
• Large volume of unused waste-rock must be stored.
• Disruption of ground water
• Production of dust and radon gas during blasting.
Open Pit Mining
A digging wheel close-up.
Bigger size = greater efficiency, right?!
big bucket
Underground Mining:
-Mining that is done completely underground.
-Tunnels (shafts) are blasted deep into the earth to reach minerals.
-This type of mining is much more dangerous due to cave-ins.
- Coal, salt, silver, diamonds, gold….
Underground Mining Impacts
• Destruction of Vegetation.
• Disrupts the water table
• Needs to be excavated before mining.
• Danger of collapse
• Dust and noise
Issues Facing the Mining Industry
• Negative Impact on the Environment
• Abandoned Mines
• Loss of Jobs
• Echo Effect
• Exhausting the Supply
• Staying Competitive
• Boom-Bust Towns