Earths crust
The crust is the very first layer on the Earth.It is the very first solid and rocky surface on the Earth which is what we live on. also it is 5km over 50 km thick.It is on the outside on the earth and it has a oceantal crust and a contiental crust. It is also made of igneous rock and sedimentary rock and metamorphic rock. It is also made of 7 continents. Also it is underlined by the mantle and the mantle is what helps holds up the crust a little and protects us from the heat of the inner core which can travel up to the crust.
heres a little chart to tell you what the air down under neath the crust to the mantle.
heres a little chart to tell you what the air down under neath the crust to the mantle.
OXIDE1) SiO2
2)AL203 3)CaO 4)MgO 5)Na20 6)Fe as FeO 7)K20 8)TiO2 9)P2O5 |
PERCENT60.6
15.9 6.4 4.7 3.1 6.7 1.8 0.7 0.1 |