rocks and their formations

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  • Created by: pipedgar
  • Created on: 04-04-14 18:10
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  • rocks
    • igneous rock
      • when magma solidifes
      • interlocking crystals
        • hard
        • resistant to heat
      • small crystals if cooled quickly
        • basalt
      • large crystals if cooled fast
        • granite
    • sedimentry
      • sediment compacted (layers)
      • erode easily
      • fossils
      • chalk
      • limestone
        • natural forms of calcium carbonate
          • chalk
    • metamorphic
      • existing rocks open to heat and pressure
      • cause new inter locking crystals
      • marble is made from chalk or limestone
        • limestone uses
          • buildings
          • base of roads
          • made of CACO3
          • heated to make glass
          • calcium carbonate---> calcium oxide + carbon dioxide
    • quarrying
      • advanatges
        • important
        • jobs
        • exported- UK economy
      • disadvantages
        • dust and noice
        • distory habitats

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