Material transported and deposited by wind and consisting predominantly of silt-size particles. Commonly a loess deposit thins and the mean-particle size decreases as distance from the source area increases. Loess sources are dominantly from either glacial meltwaters (i.e., “cold loess”) or from non-glacial, arid environments, such as deserts (i.e., “hot loess”).
   [ soil survey ]
   Several types of loess deposits can be recognized based on mineralogical composition (calcareous loess, noncalcareous loess).
   SW & GSST

Glossary of landform and geologic terms. 2013.

Look at other dictionaries:

  • loess — loess …   Dictionnaire des rimes

  • Loess — is a homogeneous, typically non stratified, porous, friable,slightly coherent, often calcareous, fine grained, silty, pale yellow or buff, windblown (aeolian) sediment. [Richthofen, F. von. 1882. On the mode of origin of the loess. The Geological …   Wikipedia

  • loess — LOESS, loessuri, s.n. Rocă sedimentară neconsolidată, de origine eoliană, de culoare galbenă cenuşie, cu aspect poros, formată mai ales din praf silicos şi argilos. [pr.: lös] – Din fr. loess. Trimis de LauraGellner, 25.05.2004. Sursa: DEX 98 … …   Dicționar Român

  • Loess — Loess. El loess (del alemán de Suiza lösch, en alemán común: Löss) es un material geológico sedimentario eólico. Etimología Procede de la palabra alemana Löß palabra introducida en geología y edafología a fines del s.XIX por el geólo …   Wikipedia Español

  • loess — loess; loess·i·al; loess·land; loess·al; …   English syllables

  • Loess — (l[ e]e), n. [G. l[ o]ss.] (Geol.) A quaternary deposit, usually consisting of a fine yellowish earth, on the banks of the Rhine and other large rivers. [1913 Webster] …   The Collaborative International Dictionary of English

  • loess — (del al. «Löß») m. Geol. *Arcilla formada por polvo de roca muy fino que cubre grandes extensiones en Asia. * * * ► masculino GEOLOGÍA Loes. * * * Depósito no estratificado, geológicamente reciente, de material sedimentario y margoso que casi… …   Enciclopedia Universal

  • loess — s.m.inv. ES ted. {{wmetafile0}} TS geol. roccia sedimentaria costituita da granuli di quarzo, calcite, idrossidi di ferro e minerali argillosi, formatasi per deposito detritico provocato dal vento in regioni predesertiche, molto abbondante in… …   Dizionario italiano

  • loess — |lôsse| s. m. [Geologia] Ver loesse.   ‣ Etimologia: palavra alemã Loess …   Dicionário da Língua Portuguesa

  • loess — n. m. GEOL Dépôt éolien, limon constitué de granules de quartz et de calcaire enrobés d argile, qui forme un sol très fertile …   Encyclopédie Universelle

  • loess — 1833 (in Lyell), unstratified deposit of loam, coined 1823 by German mineralogist Karl Cäsar von Leonhard (1779 1862) from Ger. Löss yellowish gray soil, from Swiss Ger. lösch (adj.) loose (Cf. Ger. los; see LOOSE (Cf. loose)). Related: Loessial …   Etymology dictionary