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Earth structure for S2

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Earth structure for S2

  1. 1. Unit 1AAnatomy of the Earth<br />
  2. 2. 1 in 5<br />
  3. 3. Core<br />
  4. 4.
  5. 5.
  6. 6. 1000 miles an hour<br />
  7. 7. Core<br /><ul><li>Inner Core:
  8. 8. Solid
  9. 9. Up to 4700 C
  10. 10. Iron, Nickel
  11. 11. Dense
  12. 12. Outer Core
  13. 13. Molten iron
  14. 14. 3500-4000C
  15. 15. Dense </li></li></ul><li>Mantle<br />Silicates and Magnesium Oxide<br />Dense <br />1000-3500 C (hotter towards the core)<br />Mostly solid, but rocks flow under pressure-viscous<br />Giant convection currents carry heat from the core to the crust, ...<br />..and return cooler material towards core<br />Thin layer of near-molten rock near crust<br />Moho is the boundary between crust and mantle<br />
  16. 16. Oceanic or Continental Crust?<br />Of the two, <br />Which is thicker?<br />Which is more dense?<br />Which is older?<br />Which has greater complexity of rock types?<br />Which gets recycled?<br />
  17. 17.
  18. 18. The Crust<br />“ A brittle, fractured, <br />thin, solid layer”<br />
  19. 19. Crust<br />

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