Three principal models of isostasy are used: 1. The Airy–Heiskanen model – where different topographic heights are accommodated
by changes in crustal thickness, in which the crust has a constant density 2. The Pratt–Hayford model – where different topographic heights are accommodated by lateral changes in rock density. 3. The Vening Meinesz model – where the lithosphere acts as an elastic plate and its inherent rigidity distributes local topographic loads over a broad region by bending. Consider the models pictured above. Which model best represents the model on the left? A) Pratt–Hayford model
B) Airy–Heiskanen model
C) Vening Meinesz model
D) flexural isostasy model
