- Large stones/ boulders rolled along the river bed by water moving downsream
- Happens at times of high discharge (energy levels)
- Small stones bounce or leapfrog along the channel bed.
- Associated with high energy conditions
- Small particles may be thrust up from the bed of the river, only to fall back down again further downstream.
- As these particles land they in turn dislodge more particles upwards, causing more such bouncing movements to take place.
- Very small particles of sand/silt carried along by the flow of a river.
- Also picked up through turbulence within water.
- Largest portion of sediment of the load of the river. Makes a river appear brown.
- Dissolved materials transported within the mass of the moving water
Similar Geography resources: