geography of canada mining the extraction of naturally occurring minerals from the earth
TRANSCRIPT
Geography of Canada
MiningThe 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
Off Shore Oil Rigs
What do we mine in Canada?
Oil pumped from the land…Oil derrick on land, oil rig on the sea….
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 simple layered open pit mine.
Open Pit Mining
A digging wheel at work. Coal is can be mined this way as well as oil sands.
Open Pit Mining
A digging wheel close-up.
Bigger size = greater efficiency, right?!
big bucket
Mining Truck
big truck
Open Pit Mining
Mining Equiptment
Underground (Shaft) Mining
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 (Shaft) Mining
Wire mesh to prevent loose rocks from falling.
Underground (Shaft) Mining
Temporary support beams
Underground (Shaft) Mining
A scooptram at work.
Underground Mining Impacts
• Destruction of Vegetation.
• Disrupts the water table
• Needs to be excavated before mining.
• Danger of collapse
• Dust and noise
video
Potash mining..\..\..\..\Downloads\RMR- Rick with Potash.mp4
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
Acid Rain:
Kills Forests
Abandoned Mines:
Leave scars on the Earth’s surface and can be dangerous
Exhausting the Supply:
When mines run out ,
So do the jobs!
Mining Centres in Canada