The older peices of the Earths crust are significantly lighter than the newer peices, (i.e. oceanic plates / basalt) forcing them to the surface.
continents are 4.5 million years old
The Middle.
in the earths crust
in the earths mantle
Iron , Aluminium and Copper Can Be Found , Also Gold Can Be Found Uncombined in the Earths Crust .
Iron can be found in Earths Crust
silicon
Continental crust.
in the earths crust
in the earths mantle
They can be found in the earths crust.
Not reallys sure of this question but will give it a try. New crust are born in divergent boundary in mid atlantic ridges Old places are destroyed in subductions zones The oldest might be found in shields (Canadian Shields) or where old crust are accreted to new ones
its not found yet
Iron , Aluminium and Copper Can Be Found , Also Gold Can Be Found Uncombined in the Earths Crust .
it can be found on earths crust
Iron can be found in Earths Crust
gyudryuj
silicon
its found in the earths crust.