Regularly spaced joints in an outcrop may indicate that an area ________.
A)is under intense shear stress
B)has experienced compressional stress
C)is underlain by a thrust fault
D)is formed from rocks that were once at great depth

Question

Quizplus · Accepted Answer

Regularly spaced joints commonly form in rocks that have experienced compressional stress or tensional stress, often associated with the formation of folds or faults. Compressional stresses result in the formation of joints through the development of fractures as the rock is deformed.

Regularly Spaced Joints in an Outcrop May Indicate That an Area