Concept information
Terme préférentiel
alluvium
Définition
- Alluvium is loose clay, silt, sand, or gravel that has been deposited by running water in a stream bed, on a floodplain, in an alluvial fan or beach, or in similar settings. Alluvium is also sometimes called alluvial deposit. Alluvium is typically geologically young and is not consolidated into solid rock. Sediments deposited underwater, in seas, estuaries, lakes, or ponds, are not described as alluvium. Floodplain alluvium can be highly fertile, and supported some of the earliest human civilizations. (Adapted from: https://en.wikipedia.org/wiki/Alluvium)
Concept générique
Traductions
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français
URI
http://data.loterre.fr/ark:/67375/QX8-TS91R5H8-8
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