Layers of the earth

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Layers of the earth

  1. 1. LAYERS OF THEEARTH
  2. 2.  Earth has 4 layers Crust Mantle Inner core Outer core
  3. 3. Crust  TWO KINDS OF CRUST  Continental crust  Oceanic crust
  4. 4. CRUST Silicon---(28%) Silica(SiO2),(or Quartz) Silicate ion(SiO4-) Aluminum(8%) Iron(5%) Calcium(3.6%) Sodium(2.8%) Potassium(2.6%) And Magnesium(2%)
  5. 5. Mohorovic discontinuity  Named after Andrija Mohorovic (1857- 1936)  The boundary between the crust and the mantle
  6. 6. Mantle  Very thick layer  “Asthenosphere”
  7. 7. Core(Inner and Outer) Mostly made of molten iron and nickel Responsible of Earth’s magnetic field
  8. 8. Rocks and Minerals  Kinds of rocks
  9. 9. Igneous  Rocks formed from magma that cooled and hardened
  10. 10. Sedimentary  Formed from sediments that accumulate and were compacted due to increase pressure
  11. 11. Metamorphic  Resulted from being exposed to high temperature and pressure and difference chemical reactions
  12. 12. Mineral resources

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