The Earths crust is approximately 650 km deep.
one and a half miles thick
asthenosphere
Jeanne Chezard de Matel died in 1670.
Jeanne Chezard de Matel was born in 1596.
about 20 inches
I say thick because it's got many layers.
The part that is dry land is about 25 miles thick.
mantle is the thick layer before you reach the core of the earth
2,300 km
the asthenophere is 85 km thick
the crust