Mining, rocks, soil and Energy resources - PowerPoint PPT Presentation

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Mining, rocks, soil and Energy resources

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Title: Mining, rocks, soil and Energy resources


1
Mining, rocks, soil and Energy resources
2
Mining
  • Why do we mine? To get ore
  • Ore A rock containing a mineral
  • A places with a concentration of ore is referred
    to as a deposit

3
Possible uses of some minerals mined in Quebec
  • Gold jewellery, trade, electronic equipment
  • Copper pipes for plumbing, electrical wire
  • Zinc galvanized steel (to prevent corrosion)
  • Nickel stainless steel manufacture, coins,
    magnets
  • Iron steel manufacture

4
Rocks
  • Types of rocks
  • Igneous (formed when magma cools and solidifies)
  • Sedimentary (formed by the accumulation/compaction
    of debris)
  • Metamorphic (formed when igneous or sedimentary
    rocks have been transformed by heat and/or
    pressure)

5
Uses of rocks
  • Granite ornamental stone
  • Sandstone building materials
  • Marble interior design, decorative objects

6
Soil
  • Naturally occurring, loose covering on the
    earth's surface.
  • Made up of broken rock particles that have been
    altered by chemical and environmental conditions.
  • Soil can be altered by interactions between the
    lithosphere, hydrosphere, atmosphere, and the
    biosphere.

7
Soil Horizons (Layers)
  • A specific layer in the soil which measures
    parallel to the soil surface and possesses
    physical characteristics which differ from the
    layers above and beneath.

8
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9
Layers
  • O- composed mainly of humus, organic layers of
    plant and animal residue
  • A- mixture of humus and minerals soluble in
    water, support plant life (Topsoil)
  • B- composed of small particles of minerals, dense
    (tree roots get their nutrients here)
  • C- degradation of rocks, unconsolidated soil
    parent material
  • R- partially-weathered bedrock at the base of the
    soil profile. (starting point of soil formation)

10
Permafrost
  • Permafrost is ground whose temperature has been 0
    degrees Celsius for at least two years.
  • 50 of the land in Canada is covered in
    permafrost.

11
Energy resources
  • Other than minerals the lithosphere also contains
    much of the worlds energy resources

12
Fossil fuels
  • Fossil fuels result from the transformation of
    organic residue. These energy sources consists of
    oil, natural gas and coal.
  • Non-renewable source of energy.

13
Fossil fuels
  • When fossil fuels burn they emit thermal energy.
  • Often the thermal energy is converted into
    electrical energy or mechanical energy ( i.e. to
    make an engine work)
  • Combustion also gives off by-products
  • CO2 (greenhouse gase)
  • NOx and SO2 are responsible for acid rain
  • - CH4 (21x more powerful than CO2 as a
    greenhouse gas)

14
Uranium
  • Uranium is used as a source for nuclear energy.
  • Nuclear energy the energy stored in the bonds
    between the particles in the nucleus of an atom.
  • Quebec has on nuclear plant, the Gentilly-2
    Nuclear Generating Station.

15
Geothermics
  • Geothermal energy is the energy that comes from
    the internal heat of the Earth.
  • It is a renewable source of energy.

16
In class work
  • P. 215
  • Questions 10 to 19
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