delta formation theories

Delta formation theories explain how deltas—landforms formed at river mouths—develop and change over time. They typically involve the balance between a river's sediment supply, the energy of the water flow, and the ocean or lake conditions like waves and tides. As the river deposits sediment faster than it can be washed away, it creates land that fans out into the body of water, forming a delta. Different theories, such as the "Wave-Dominated" or "Tide-Dominated" models, describe how these forces shape the delta’s structure, influencing its shape and growth patterns.