Dictionary: A   B   C   D   E   F   G   H   I   J   K   L   M   N   O   P   Q   R   S   T   U   V   W   X   Y   Z

Alluvial fan

a fan-shaped alluvial deposit formed by a stream where its velocity is abruptly decreased, as at the mouth of a ravine or at the foot of a mountain.
Historical Examples

Steep valleys descend from the higher country to join the main valley and at the mouth of every tributary is an alluvial fan.
The Andes of Southern Peru Isaiah Bowman

Half an hour’s walk brought us to Vista Alegre, another little clearing on an alluvial fan in the bend of the river.
Inca Land Hiram Bingham

In their place an extensive delta and alluvial fan have been formed.
The Andes of Southern Peru Isaiah Bowman

Undoubtedly this alluvial fan had been highly prized in this country of terribly steep hills.
Inca Land Hiram Bingham

a fan-shaped accumulation of silt, sand, gravel, and boulders deposited by fast-flowing mountain rivers when they reach flatter land
alluvial fan
A fan-shaped mass of sediment, especially silt, sand, gravel, and boulders, deposited by a river when its flow is suddenly slowed. Alluvial fans typically form where a river pours out from a steep valley through mountains onto a flat plain. Unlike deltas, they are not deposited into a body of standing water.


Read Also:

  • Alluvial mining

    noun a method of extracting minerals by dredging alluvial deposits Historical Examples Several of the alluvial mining companies are getting gold in increased quantities. A Boy’s Voyage Round the World The Son of Samuel Smiles

  • Alluvial plain

    a level or gently sloping surface formed of sediments laid down by streams, generally during flooding. Historical Examples Perhaps it is the nature of that alluvial plain that accounts also for so plentiful a harvest of mosquitoes. The Fortunate Isles Mary Stuart Boyd The stones at Beled had been the first signs that we were […]

  • Alluvion

    Law. a gradual increase of land on a shore or a river bank by the action of water, whether from natural or artificial causes. overflow; flood. Now Rare. . Historical Examples alluvion is the name for an accession of land washed up on the sea-shore or on a river-bank by the waters. International Law. A […]

  • Ally to

    to unite formally, as by treaty, league, marriage, or the like (usually followed by with or to): Russia allied itself to France. to associate or connect by some mutual relationship, as resemblance or friendship. to enter into an ; join; unite. a person, group, or nation that is associated with another or others for some […]

Disclaimer: Alluvial fan definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.