placer

• Nom désignant un dépôt alluvial contenant des particules d'un minéral précieux, tel que l'or ou l'étain.

A noun referring to an alluvial deposit containing particles of a valuable mineral, such as gold or tin.

1. Alluvial mineral depositC1formal

   A deposit of sand or gravel containing particles of valuable minerals, such as gold or diamonds, formed by the action of water.

   Placer (gisement alluvionnaire)

   • The miners discovered a rich placer of gold in the riverbed.
   • Placer deposits are often found in streams and ancient river channels.
   • The company invested in equipment to extract minerals from the placer.

   Synonymesalluvial deposit