Distinguish between Bangar and Khadar.
- The Bhangar is composed of old alluvium of the Middle Pleistocene age and forms the alluvial terrace above the level of floodplains.
- Remnants of the Bhangar are eroded by every change in the direction of river channels and are being leveled down by their meandering tendencies.
- On the other hand, the Khadar is composed of newer alluvium and forms the floodplains along the river banks. A new layer of alluvium is deposited by river flood almost every year. These deposits are normally confined to the vicinity of the present river channels.
- The khadar imperceptibly mergers into the deltic and other accumulation of prehistoric times.