Earth's Structure
(km from surface)
Atmosphere 0-
Exosphere above 500-1000
Thermosphere above 640
Mesopause 85
Mesosphere -85
Stratopause 50
Stratosphere -50
Tropopause 11
Troposphere 0-7
(Thickness varies between poles and tropes from 7 to 17 km)
Oceanic Crust 0-6
Continental Crust 0-40
Mantle 20-2900
Moho 20-120
Upper Mantle 20-400
400km Discontinuity 400
Transition Region 400-650
650km Discontinuity 650
Lower Mantle 650-2740
D" 2740-2900
Core 2900-6370
Outer Core 2900-5200
Inner Core 5200-6370