Little information about The layers of the earth

1. LAYERS OF THE
EARTH

2.  Earth has 4 layers
 Crust
 Mantle
 Inner core
 Outer core

3. Crust
 TWO KINDS OF CRUST
 Continental crust
 Oceanic crust

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. Mohorovic discontinuity
 Named after Andrija Mohorovic (1857-
1936)
 The boundary between the crust and the
mantle

6. Mantle
 Very thick layer
 “Asthenosphere”

7. Core(Inner and Outer)
 Mostly made of molten iron and nickel
 Responsible of Earth’s magnetic field

8. Rocks and Minerals
 Kinds of rocks

9. Igneous
 Rocks formed from magma that cooled
and hardened

10. Sedimentary
 Formed from sediments that accumulate
and were compacted due to increase
pressure

11. Metamorphic
 Resulted from being exposed to high
temperature and pressure and difference
chemical reactions

12. Mineral resources