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The Earth, its rocks and minerals (Factors affecting the viability of…

- - - - Are sediments that can be formed by any type of rock
        
        As long as they are exposed to weathering and erosion
        
        The rock break and release particles
        
        Particles reach the seabed and accumulate
        
        The particles compress to form sediments
        
        As the lower layers of the Earth are exposed the particles get together to form another rock
    - - Are changed by heat and pressure
        
        As rocks are altered by the pressure they may join with other rocks to form one
        
        These changes can either be chemical, physical or both
        
        Sedimentary and Igneous rock can became Metamorphic
    - - Are formed by the cooling of magma
      - As magma cools, rocks crystalize
        
        The faster they cool the less crystal they have
      - As they are eroeded or weathered
        
        They break into particles
      - The most common are Granite and Basalt
- - - - This willl help to see:
        
        The oxidation of the metal
        
        The different colors that the Earth presents
        
        The mineral expose
  - - - Imformation is sent to computers
        
        Workers go to recollect the information and minerals
        
        And then they are sent to a geochemical analysis
  - - - Minerals dopists are found
        
        It consist on looking closely trow the surface for minerals
        
        And to filter rocks and particles
  - - - For the wave to rebond on the mineral deposit
        
        It will help you to know:
        
        The amount in the area
        
        The type of mineral
        
        Where to extract it
- - - - Mineral is under a layer of overburden
        
        After expolitation is done
        
        The land is reestored with the overburden
    - - A pit is dug
        
        Roads and safe walls are build to prevent rock falling
        
        Through the roads workers get to the mineral deposit and overburden
    - - This process is usually used to extract coal from the surface
        
        It consist on taking the overburden in strips taking thin layers
  - - - Built to reach deeper mineral deposits
    - - Dig an horizontal tunnel directly to the mineral deposit
    - - To dig a vertical tunnel which reach to the deepest mineral deposit
- - - - The deep underground explotation would be not worth it
        
        The cost of the exploitation would be higher than the profit won
  - - - So it's difficult for the trucks to have access
        
        Roads must be built to get there
  - - - So it won't be worth it to spend a lot of mooney in the exploitation if profits aren't good
- - - - By the breath of dust and chemicals
        
        Unhealthy job
- - - - Avoid destruction of biodiversity
      - Avoid extra pollution
  - - - Fill holes
      - Add organic matter to restore the soil
      - Clean
      - Clean water
      - Plant
  - - - Extraction won't be needed and you'd be saving the planet
        
        There would be no pollution
        
        And money would have been saved