key term : limestone

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  • Created by: michelle
  • Created on: 17-05-13 19:15
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  • limestone:   key terms
    • limestone pavement
      • area of flat exposed land
    • carboniferous limestone
      • formed suring lower carboniferous geological period
        • 300 million years ago
    • sedimentary
      • formed from living things
        • also bits of rock on rivers or sea beds
    • strata
      • thin layer of rock (few mm thinck)
    • bedding plane
      • a line separating 2 beds
    • joints
      • lines of weakness
    • impermeable
      • water cannot soak in
    • permeable
      • water can soak in
    • dry valley
      • valley eroded by a river
    • clint
      • block of weathered limestone
    • gryke
      • gap between the clints
    • stalagmite
      • in caves only
        • column of limestone growing up
    • stalactite
      • column of limestone growing down from the roof
        • caves only
  • block of weathered limestone

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