👉 "Depositional" is a scientific concept that refers to the process of sediment deposition, which is a large-scale transformation and accumulation of sedimentary materials over time. This occurs when particles such as sand, silt, clay, and gravel accumulate in bodies of water or landfills, and these deposits are then deposited back into the environment. Depositional processes can include various types of sedimentation, including horizontal transport, vertical movement, and erosion. They typically involve a combination of mechanical forces (