alluvial deposit

• Terme géologique désignant un dépôt de sédiments tel que sable, limon, argile ou gravier, transporté et déposé par les eaux courantes, généralement dans les lits de rivières, les plaines d'inondation ou les deltas.

A geological term referring to sediment, such as sand, silt, clay, or gravel, that has been transported and deposited by flowing water, typically in riverbeds, floodplains, or deltas.

1. Sediment accumulationC1formal

   A deposit of clay, silt, sand, gravel, or other material left by flowing water, typically in riverbeds, floodplains, or deltas.

   dépôt alluvial

   • The river's alluvial deposit created fertile farmland along its banks.
   • Geologists studied the alluvial deposit to understand the region's history.
   • Gold is often found in ancient alluvial deposits.