alluvial sediment

noun
clay or silt or gravel carried by rushing streams and deposited where the stream slows down
Syn: ↑alluvial deposit, ↑alluvium, ↑alluvion
Derivationally related forms: ↑alluvial (for: ↑alluvium)
Hypernyms: ↑sediment, ↑deposit
Hyponyms: ↑delta, ↑placer
Substance Meronyms: ↑alluvial soil

Useful english dictionary. 2012.

Look at other dictionaries:

  • alluvial deposit — noun clay or silt or gravel carried by rushing streams and deposited where the stream slows down • Syn: ↑alluvial sediment, ↑alluvium, ↑alluvion • Derivationally related forms: ↑alluvial (for: ↑alluvium) …   Useful english dictionary

  • alluvial soil — noun a fine grained fertile soil deposited by water flowing over flood plains or in river beds • Hypernyms: ↑soil, ↑dirt • Substance Holonyms: ↑alluvial sediment, ↑alluvial deposit, ↑alluvium, ↑alluvion …   Useful english dictionary

  • Sediment — Sédiment Le processus de sédimentation est d abord une loi physique, liée à la pesanteur.Des phénomènes biologiques peuvent l accélérer ou le réduire, intervenant notamment dans les cycles écologiques et biogéochimiques …   Wikipédia en Français

  • 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

  • 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 plain — An alluvial plain is a relatively flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms. A floodplain is part of the process, being the… …   Wikipedia

  • Sediment — Cobbles on a beach River Rhône flowing into Lake Geneva …   Wikipedia

  • Sédiment — Le processus de sédimentation est d abord une loi physique, liée à la pesanteur. Des phénomènes biologiques peuvent l accélérer ou le réduire, intervenant notamment dans les cycles écologiques et biogéochimiques …   Wikipédia en Français

  • alluvial — 1. adjective /əˈluː.vi.əl/ Pertaining to the soil deposited by a stream. Soils are a prominent feature of floodplain environments, and we include them in this section because most of the available information on ancient soils pertains to alluvial …   Wiktionary

  • alluvial plain — noun A plain formed by the deposition of sediment from the periodic flooding of a river. Syn: floodplain …   Wiktionary

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