"Sediment deposits" refer to the accumulation of particles like sand, silt, and rocks that settle at the bottom of bodies of water or on land over time. Full definition
Researchers can date the sequences of sediment deposited on the ocean floor and, using this turbulence model, track the edges of the ocean, indicating sea - level rise. (sciencedaily.com)
Areas between these cones, on the other hand, appear to contain only sediment deposited by waves in a shallow sea. (scientificamerican.com)
About a foot beneath the surface are sediment deposits from an ancient lake which is known from animal fossils to have been freshwater. (sciencedaily.com)