____________ in metamorphic rock may become a failure surface.

Question

Quizplus · Accepted Answer

Foliation planes in metamorphic rock represent zones of preferred orientation or alignment of mineral grains. In some cases, these planes may become planes of weakness or failure surfaces, especially if subjected to stresses that are oriented parallel or nearly parallel to the foliation. Bedding planes and exfoliation joints are more commonly associated with sedimentary and igneous rocks, respectively, and are not necessarily indicative of planes of weakness or failure in metamorphic rocks.

____________ in Metamorphic Rock May Become a Failure Surface