LANDFORMS OF FLUVIAL EROSION- Oxbow lake

Oxbow lakes

Outer banks - meander = eroded through processes - hydraulic action = neck = narrow= the two outer bends meet = river cuts through the neck of the meander (usually during a flood event = energy in the river is at its highest).

The water = takes its shortest route.
Deposition = seals off the old meander bend = a new straighter river channel is formed.
Deposition = old meander bend = left isolated from the main channel= an ox-bow lake.
The feature= fills up with sediment + may gradually dry up (except for periods of heavy rain)= a meander scar.