Independent of any local scale erosion or deposition, thick accumulations of ice load the crust and upper mantle_________ .
A) causing the crust to rise up with an immediate elastic rebound
B) causing the crust to thrust and fold like in a mountain building event
C) causing the crust to subside
D) causing the crust to drift laterally, instigating major tectonic motions

Question

Quizplus · Accepted Answer

Thick accumulations of ice load the crust and upper mantle, causing the crust to subside due to the weight of the ice. This is a process known as isostatic adjustment, where the Earth's crust responds to changes in surface load.

Independent of Any Local Scale Erosion or Deposition, Thick Accumulations