Question

Ductile deformation results in a change of the shape of solids without breaking them. This can also be said of elastic deformation. Watch both the Elastic Deformation and Ductile Deformation topics in the Reock Deformation Animation, and compare the two types of deformation. How is ductile deformation different from elastic deformation? Choose one or more: OA. Once the stress is removed, rocks that have undergone ductile deformation return to their original shape. B. Ductile deformation can result in tight folds, whereas elastic deformation usually terminates in brittle deformation rather than tight folding. OC. Once the stress is removed, rocks that have undergone ductile deformation retain their new shape. D. Ductile deformation results in folds, whereas elastic deformation results in faults. E. Ductile deformation requires internal fracturing of the rock, whereas elastic deformation does not.

Answer 1

Dear Student,

Answer is :

B. Ductile deformation can result in tight folds, whereas elastic deformation usually terminates in brittle deformation rather than tight folding.

C. Once the stress is removed, rocks that have undergone ductile deformation retain their new shape

Explanation: The rocks are not elastic in nature. they only tend to bend when they undergo ductile deformation at high temperatures. once they deform they retain a new shape.

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