crevasse subdeltas
Crevasse subdeltas develop on modern river-dominated delta plains and consist of relatively large receiving bays that have depths of 32-49 ft (10-15 m). These may be affected by the interaction of river currents and marine processes. The process by which these are formed is referred to as “bay filling”. Crevasses form as a result of the movement and shear stress that is generated when two semi-rigid pieces above a plastic substrate have different rates of movement.