Contents of 13.1 Why are continents high and oceans low?

13.1 Why are continents high and oceans low?

Another model of oceanic crusts and continental crusts that does not take into account the differences in density.

Fig 13.6

This model of isostasy also has the proper elevation difference and the crustal layers are of different thicknesses, but it must be invalid as well since we know that oceanic and continental crust are of differing densities.