If the products of rock weathering are still present at the place of origin, the soil is called Residual Soil.
For example : Bentonite is a type of chemically weathered volcanic ash that is present on the parent rock from which it is formed.
the soil has been transported away from its place of origin by wind,
water or any other agency and has been redeposited elsewhere, it is
called Transported Soil.
For example : Alluvial soils are eroded from hills by rivers and deposited from suspension in running water in the plains below.