Definition of alluvium

  • Alluvium / alluvion, the soils sands, quartz-drifts, clays, and auriferous gravels of recent formation found in the lines of watercourses, in flats, and on the slopes of hills in the (in some cases obliterated) lines of drainage, are called alluviums. The term is too often used vaguely.

– The Gold Fields and Mineral Districts of Victoria, 1869