Internal structure of the Earth ALL PARTS ARE COVER OF INTERNAL STRUCTURE OF THE EARTH

1. DEPARTMENT OF
CIVIL ENGINEERING
INTERNAL STRUCTURE OF THE
EARTH
Er. Ramprasad Kumawat
M.Tech

2. INTERNAL STRUCTURE OF THE
EARTH

3. Internal Structure (cont.)
Crust – the outer, hardest layer of the
lithosphere; continental crust (mostly granite,
2.7 g/cm³, 0-40 km) and oceanic crust (basalt
3.0 g/cm³, 0-10km)
Lithosphere – crust and upper most, solid,
rigid portion of the mantle – broken into pieces
(0-100 km)

4. Asthenosphere – partially molten rock in the
upper mantle; plastic consistency (100-700km)
Mohorovic Discontinuity (Moho) – the
boundary between the Earth’s crust and the upper
mantle -- averaging 8 kilometers (5 miles) in
depth under the oceans and 32 kilometers (20
miles) in depth under the continents

5. Mantle – molten rock that has a much stiffer
consistency than the asthenosphere – solid yet
behaves like a liquid similar to a glacier
(3.3 – 5.5 g/cm³, 700- 2900km)
Outer Core – liquid iron and nickel
(9.9 – 12.1 g/cm³, 2900 to 4980km)
Inner Core – solid, iron and nickel
(12.7-13.0 g/cm³, 4980 to 6370km)

10. • Thanks!
• Gmail: ramkumawat001@gmail.com