Question #c4db4

1 Answer
Sep 18, 2017
  1. The direct force of the glacial mass on the underlying earth.
  2. The movement of earth by the slow movement of the glacier across the earth as it moves to a lower position due to gravity.


The first one is simply the effect of the mass pressing against the supporting earth. It may compact dirt, create gaps in earth and rock, and crush smaller rock pieces.

The second one also involves the movement, which transports rock and soil of all proportions to different places (moraines are a great example), and can gouge out valleys from earth and rock over which it travels.