alluvial soil

noun phrase

Meaning

Loose, unconsolidated sediment deposited by flowing water, such as rivers or streams, typically found in floodplains and deltas.

Examples

  • Farmers have cultivated this valley for generations because the alluvial soil provides essential nutrients for their crops.
  • Geologists analyzed the alluvial soil to determine the historical path of the ancient river.

Synonyms: silt, sediment, loam, alluvium