Types, Origin and Nature of Soil (in brief)

Unfortunately, soils are made by nature and not by man, and the products of nature are always complex…

Transported soil: It is soil which is transported by means of natural agencies and is far away from their origin. Sedimentary soil is an example of transported soil.
Residual soil: It is soil, which is transformed from rock and resides where it was. An important characteristic of residual soil is that its size of grains of soil is indefinite.
Alluvial soil: It is soil which is transported by water, say river or stream.
Colluvial soi: It is soil transported by gravitational force. Soil, slide from a mountain falls under this category.
Lacustrine soil: It is a type of soil which is found at the bed of a lake. This type of soil is transported by water and reached the lake’s bed. Lacustrine clay and lacustrine silt are examples.
Aeoline soil: Wind transported soil is called Aeoline soil.
Glacial soil: Soil transported due to glaciers is called glacial soil.
Marine soil: Soil deposited by flowing water in sea beds is called marine soil.
Loam: The Loam is a mixture of sand, clay, and silt.