When the asthenosphere pushes up on the lithosphere to compensate for erosion this is called an?

When the asthenosphere pushes up on the lithosphere to compensate for erosion, this is called isostatic rebound or isostasy. This process occurs as the Earth's crust adjusts to changes in surface load, such as the removal of ice or sediment. As material is eroded away, the underlying mantle material can flow upward, allowing the lithosphere to rise back to its equilibrium position.