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alluvial sand

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См. также в других словарях:

  • alluvial fan — Physical Geog. 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. Also called alluvial cone. [1870 75] * * * ▪ geological feature  unconsolidated… …   Universalium

  • Alluvial fan — An alluvial fan is a fan shaped deposit formed where a fast flowing stream flattens, slows, and spreads typically at the exit of a canyon onto a flatter plain. A convergence of neighboring alluvial fans into a single apron of deposits against a… …   Wikipedia

  • sand dune — Hill, mound, or ridge of windblown sand or other loose material such as clay particles. Dunes are commonly associated with desert regions and seacoasts, and there are large areas of dunes in nonglacial parts of Antarctica. * * * Introduction  any …   Universalium

  • alluvial cone — noun a fan shaped deposit where a fast flowing stream flattens out • Syn: ↑alluvial fan • Hypernyms: ↑geological phenomenon * * * noun : an alluvial fan with steep slopes * * * alluvial fan or alluvial cone …   Useful english dictionary

  • sand cone — noun 1. : a low pinnacle of ice on a glacier protected from melting by a veneer of sand 2. : a cone shaped mass of sandy debris deposited especially in an alluvial cone * * * sand cone, a low, conical projection of glacial ice the rapid melting… …   Useful english dictionary

  • alluvial deposit — Material deposited by rivers. It consists of silt, sand, clay, and gravel, as well as much organic matter. Alluvial deposits are usually most extensive in the lower part of a river s course, forming floodplains and deltas, but they may form at… …   Universalium

  • alluvial — [[t]əlu͟ːviəl[/t]] ADJ Alluvial soils are soils which consist of earth and sand left behind on land which has been flooded or where a river once flowed; a technical term in geography …   English dictionary

  • alluvial — alluvium ► NOUN ▪ a fertile deposit of clay, silt, and sand left by river flood water. DERIVATIVES alluvial adjective. ORIGIN Latin, from luere to wash …   English terms dictionary

  • Alluvial — Alluvialböden oder Alluvionen (lat. alluvio „Anschwemmung“) sind junge Schwemmböden an Meeresküsten, Fluss und Seeufern. Auch Gletscher können Alluvialböden ablagern. Inhaltsverzeichnis 1 Entstehung 2 Zusammensetzung 3 …   Deutsch Wikipedia

  • alluvial — al|lu|vi|al [ ə luviəl ] adjective TECHNICAL made of earth and sand left by rivers or floods …   Usage of the words and phrases in modern English

  • alluvial — al·lu·vi·al || É™ luːvjÉ™l adj. pertaining to alluvium, containing mud or sand deposits …   English contemporary dictionary

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