Oceanic and continental crusts

  • Created by: Mimipotte
  • Created on: 04-05-15 14:12

The continental crust (Sial)

  • It is older - most are over 1500 million years old 
  • It is less dense than the oceanic crust 
  • It cannot sink 
  • It cannot be renewed or destroyed 
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The oceanic crust (Sima)

  • It is newer than the continental crust - most are less than 200 million years old
  • It is denser than sial 
  • It can sink 
  • It can be renewed and destroyed 
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