Isostasy

Effect of Material Thickness00:00:02

Isostasy refers to the state of gravitational equilibrium. When materials have the same density but different thicknesses, the thicker material rises to a higher elevation relative to the thinner material.

Effect of Material Density00:00:21

When comparing materials of the same volume but different densities, the less dense material will stand higher than the denser one. This is illustrated by comparing less dense continental granite to the denser oceanic gabbro.