Crust

• What is the crust?


  The outermost layer of the Earth
• What is the material of the crust?


  Rock
• Which structure of the Earth has the thinnest layer ?

  Crust
• What are features of the oceanic crust?

  • Thin
  • 5-10 kilometres thick
  • newer : less than 200 million years old
  • more dense
  • sinks
  • can be renewed and destroyed
• What are the features of the Continental crust ?

  • older: over 1500 million years old
  • 20-200 kilometres thick
  • Less dense
  • Cannot sink
  • Cannot be renewed of destroyed
  • Thick
• How thick is the crust?


  75km
• What is the temperature for the crust ?


  20 degrees Celsius