layers of the earth
DESCRIPTION
Little information about The layers of the earthTRANSCRIPT
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LAYERS OF THEEARTH
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Earth has 4 layers Crust Mantle Inner core Outer core
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Crust
TWO KINDS OF CRUST Continental crust Oceanic crust
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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%)
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Mohorovic discontinuity
Named after Andrija Mohorovic (1857-1936)
The boundary between the crust and the mantle
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Mantle
Very thick layer “Asthenosphere”
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Core(Inner and Outer)
Mostly made of molten iron and nickel Responsible of Earth’s magnetic field
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Rocks and Minerals
Kinds of rocks
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Igneous
Rocks formed from magma that cooled and hardened
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Sedimentary
Formed from sediments that accumulate and were compacted due to increase pressure
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Metamorphic
Resulted from being exposed to high temperature and pressure and difference chemical reactions
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Mineral resources