Question

Which of the following is most likely to occur at deep crustal levels? Ductile behavior, brittle deformation, fracturing, or only minor changes in minerals?

1) Ductile behavior
2) Brittle deformation
3) Fracturing
4) Only minor changes in minerals

Answer 1

Ductile behavior is most likely to occur at deep crustal levels.

Step-by-step explanation:

Ductile behavior is most likely to occur at deep crustal levels. When rocks are subjected to increased stress and strain, they initially behave in an elastic manner, returning to their original shape after deformation. However, as the stress continues and reaches the elastic limit, the rocks undergo plastic deformation and become ductile. This is because rocks tend to deform in a more plastic manner at depth in the Earth's crust.