What is alluvial soil how is it formed
Answers
alluvial soil - a fine-grained fertile soil deposited by water flowing over flood plains or in river beds. alluvial deposit, alluvial sediment, alluvium, alluvion - clay or silt or gravel carried by rushing streams and deposited where the stream slows down.
it is formed by:-
★ They are formed by deposition of materials or sediments (alluvium) brought in down by rivers that consist of silt, sand, clay, etc.
★ They have been deposited by the Indo-Gangetic-Brahmaputra rivers (the Indus, the Ganga and the Brahmaputra rivers) which are the three important rivers of Himalaya.
★ Some of them have been formed by the sea waves or due to wave action in the coastal areas or regions.
★ Alluvial soil which is found in the deltas of river is called deltaic alluvium (coastal alluvium).