- a deposit of sand, mud, etc., formed by flowing water.
- the sedimentary matter deposited thus within recent times, especially in the valleys of large rivers.
Origin of alluvium
Related Words for alluviumgoo, silt, slime, muck, sludge, gunk, land, dirt, terrain, shore, surface, coast, mud, clay, dust, turf, gravel, sand, mire, fluid
Examples from the Web for alluvium
Historical Examples of alluvium
If so, the thickness of the alluvium is at least 1800 ft., and may be much more.
Here I had an opportunity of seeing the material of which the alluvium is composed.Notes on the Fenland
T. McKenny Huges
Strata intersected by a trap dike, and covered with alluvium.A Manual of Elementary Geology
It would be interesting to know the thickness of the alluvium.The Geological Story of the Isle of Wight
J. Cecil Hughes
This growth rarely takes place from the waste of the bed rocks on which the alluvium lies.Outlines of the Earth's History
Nathaniel Southgate Shaler
- a fine-grained fertile soil consisting of mud, silt, and sand deposited by flowing water on flood plains, in river beds, and in estuaries
Word Origin for alluvium
- Sand, silt, clay, gravel, or other matter deposited by flowing water, as in a riverbed, floodplain, delta, or alluvial fan. Alluvium is generally considered a young deposit in terms of geologic time.