Over time superficial cracks, joints, and folds of these layers were saturated with water. Ice formed in the fissures, melted under extreme desert heat, and winds cleaned out the loose particles. A series of free-standing fins remained.
Over time, fissures, cracks, and folds of these layers became saturated with water. Ice formed in the crevices, melted under intense desert heat, and winds cleared away loose particles. A series of freestanding fins remained.