Sometimes referred to as placer
Found on
http://www.juniorminers.com/glossary.html
Earth, sand or gravel, sometimes bearing metallic minerals, which has been washed down from the original source by water action. (See also Eluvial).
Found on
http://www.metalbulletin.com/Glossary.html
Layer of broken rocky matter, or sediment, formed from material that has been carried in suspension by a river or stream and dropped as the velocity of the current decreases. River plains and deltas are made entirely of alluvial deposits, but smaller pockets can be found in the beds of upland torrents. Alluvial deposits can consist of a whole range...
Found on
https://www.encyclo.co.uk/local/21221
clay, silt, sand, gravel, gold or other mineral or other unconsolidated material deposited gradually by flowing water.
Found on
https://www.encyclo.co.uk/local/22703
No exact match found.
