When solid rock deforms and returns to its original shape, it has undergone:
A) elastic deformation.
B) plastic deformation.
C) liquefaction.
D) brittle fracture.

Question

Quizplus · Accepted Answer

Elastic deformation is when the rock experiences strain due to external forces but returns to its original shape once the forces are removed. This is different from plastic deformation where the rock retains the deformed shape even after the forces are removed. Liquefaction is the process where a solid behaves more like a liquid due to the application of external forces, which is not applicable in this case. Brittle fracture is when the rock breaks without undergoing any significant deformation.

When Solid Rock Deforms and Returns to Its Original Shape