Question

At depths of greater than 60 m, ice moves by plastic deformation. What causes this transition from brittle to ductile behavior?

Answer 1

Increase in the intensity of pressure allows very less deformation

Step-by-step explanation:

For the water the variation of pressure at any depth is directly proportional to the depth of the water above that level.

Thus, at depth greater than 60 m the intensity of pressure on ice is very high and therefore very little deformation is possible.

Hence, the transition from brittle to ductile behavior is observed.