The Earth's Interior Structure
- The earth is divided into THREE main parts: Core, Mantle and Crust.
- The core has TWO parts: the inner and outer core.
- The mantle consist of the lower mantle and the upper mantle (asthenosphere).
- The crust is also known as the lithosphere and it is divided into the continental crust and the oceanic crust.
- There are TWO discontinuity : (a) Gutenburg discontinuity-seperates the core from the mantle.
(b) Mohorovicic discontinuity- seperates the mantle from the crust.