What are the models of isostasy?
What are the models of isostasy? Three principal models of isostasy are used: The Airy–Heiskanen model – where different topographic heights are accommodated by changes in crustal thickness, in which the crust has a constant density. The Pratt–Hayford model – where different topographic heights are accommodated by lateral changes in rock density. How can you explain the theory of isostasy? In the theory of isostasy, a mass above sea level is supported below sea level, and there is thus a certain depth at which the total weight per unit area is equal all around the Earth; this is known as...