Please enable JavaScript.

Coggle requires JavaScript to display documents.

Rocks and soil (mining (factors afecting the viability of the extraction…

- - - - looking for minerals in the surface
    - - looking for minerals in the surface but with satelites
      - it is used for larger pieces of land
    - - satelites(thermal images
    - - vibration waves to find minerals
      - depending the vibration depends the mineral you will find
  - - - digging tunels
      - machines
      - deep mining
        
        drif-mining
        
        horizontal tunels directly to mineral
        
        sloping tunels
        
        to reach deeper deposits
      - shaft mining
        
        vertical tunels
        
        to get to deepest deposits
    - - open pit
        
        dig bellow the sea level
        
        bellow usles materials
      - open cust
        
        dig on a mountain
        
        need to create walls to prevent rocks from falling
      - strip mining
        
        used to extract coal from surface
  - - - depending on how hard will it be to transportate the minerals
    - - chances of finding a good mineral deposit
  - - - taxes for the goverment
      - exportation
      - provides jobs
    - - diseases
      - disturbs neighbour
      - unhealthy job
      - air, water, land, and noise pollution
    - - loss of habit
      - water pollution
      - noise pollution
      - biodiversity
      - break the food chain
      - air pollution
      - land pollution
      - environmental impact assesment
        
        every company must pass it
  - - - removing only as much land as needed
    - - using only what is needed and recycle
    - - avoide extra pollution
    - - restore the environment
- - - - divide into tiny particles
        
        placed in diferent layers (sediments)
        
        compressed (preasure)
        
        example: coal
  - - - fast
        
        no cristals
      - slow
        
        cristals