Crust, aesthenosphere, lithosphere, mantle etc
There are multiple ways this situation was viewed.
It can be looked at geologically which says there are three basic layers of the earth
each of the layers can be subdivided: ie
the core can be identified as the inner core
outer core
There are other layers
The lithosphere and the asthenosphere
The plates (of plate tectonics) are composed of the crust and part of the upper mantle.
The plates are like rafts that float on the plasticlike (softer more flexible) other part of the mantle
These plates are rigid and less dense – they float on the asthenosphere
Litho mean rock – solid – hence lithosphere which is the solid layers
The
lithosphere:
is subdivided into:
the crust and
the upper mantle
below the lithosphere
Plastic like – means soft more flexible which is where these convection currents occur
3. Summary of layers