Fluvial deposits are sediments that accumulate in river systems and their surrounding areas. These deposits are formed by the movement of water, which erodes materials from the riverbanks and transports them downstream. As the water slows down, it loses energy and drops the sediments, creating features like sandbars, riverbanks, and floodplains. These deposits can vary in size and composition, including sand, silt, and clay. They play a crucial role in shaping landscapes and providing habitats for various plants and animals. Additionally, fluvial deposits are important for agriculture, as they often enrich the soil with nutrients.