12 terms

GCSE river processes

From http://www.coolgeography.co.uk
STUDY
PLAY
Hydraulic action
where the sheer force of the water erodes the stones, bed and banks of the river
Abrasion
where stones in transport are thrown into the bed and the banks eroding them
CorrOsion
where weak acids within the water react with the rocks and bed and bank of the river
Attrition
where stones in transport are thrown into one another
Solution
where material is dissolved within the water
Suspension
where small particles are held up or suspended in the water
Saltation
the bouncing motion of larger particles along the river bed
Traction
the rolling motion of sediment along the bed - normally much larger sediment.
Deposition
this is the laying down of sediment in the river channel or on floodplains
Load
Material of any size carried by the river
River erosion
Where moving water breaks down rocks into smaller chunks
River transport
Where river water MOVES sediment