What are the two types of alluvial soil?
Alluvium (from the Latin, alluvius, from alluere, “to wash against”) is soil or sediments deposited by a river or other running water. Alluvium is typically made up of a variety of materials, including fine particles of silt and clay and larger particles of sand and gravel. Flowing water associated with glaciers may also deposit alluvium, but deposits directly from ice are not alluvium — wiki The alluvial soils can further be divided into two main sub types-young alluvial and old alluvial soils. The young alluvial soils is characterized by modern alluvium deposits. The colour of these soils is generally gray to molted gray. On the other hand, the old alluvial soils occurs in some patches of Kokrajgar, Barpeta, Nalbari, Kamrup, darrang, Sonitpur, Lakhimpuir and Dhemaji district. Generally, the old alluvial soils are very deep with fine loams to coarce loams in texture.
