Endogenic

Exogenic

Lithosphere

Asthenosphere

Mohorovicic discontinuity (Moho)

SiAl 30-70km thick e.g.granite

SiMa 3-10km thick, dense, e.g.basalt

Solid, iron and nickel, 5000 degrees Celsius

Iron, molten state

Rock, molten/semi-molten

Continental/oceanic, solid rock

Solid upper mantle + crust

Convection currents