Geology
The study of the earth
Transition zone
the area in between, where the upper mantle merges into the lower mantle
Lithosphere
sphere of stone
Core - mantle boundary
The part that lies beneath the surface and marks the bottom of the mantle.
asthenosphere
The plastic rock in the lower portion of the upper mantle.
Volcanic mountain
when molten rock erupts from A hole in the earth's crust.
Domed mountain
when molten rockis forced beneath an overlying rock layer.