The general name for all sediments, including clay, silt, sans, gravel or similar unconsolidated material deposited in a sorted or semi-sorted condition by a stream or other body of running water, in a stream bed, floodplain, delta or at the base of a mountain slope as a fan

Sediments deposited by water but which may now be dry land. A delta is an example of an alluvial deposit. [Lat alluvius, wash.

Detrital material which is transported by a RIVER and deposited - usually temporarily - at points along the FLOODPLAIN of a RIVER. Commonly composed of SANDS and GRAVELS.