Alluvial deposit, also known as alluvium, refers to soil, sand, or sediment that is deposited by a moving current of water such as a river, stream, or even ocean. Synonyms for alluvial deposit include alluvion, detritus, silt, and sediment. Alluvial soil is rich in nutrients which makes it highly fertile for agriculture. The deposition process causes the soil to be well-bedded, which makes it easy to till and cultivate crops. Alluvial deposits are often found in river deltas, floodplains, and areas near mountain foothills. The term "alluvial deposit" is commonly used in geology, soil science, and mining. These synonyms help readers to understand the concept and context of alluvial deposits in various fields of study.