Exogenic river material - ANS Massmovement
Erosion
Sheetwash
Endogenic river material - ANS From stream bed and bank
Bed-load - ANS Includes larger particles which cannot be picked up by the current. They can be exogenic
or endogenic
Saltation - ANS Sand, pebbles and gravel are temporarily li...
A-level geography
Exogenic river material - ANS Massmovement
Erosion
Sheetwash
Endogenic river material - ANS From stream bed and bank
Bed-load - ANS Includes larger particles which cannot be picked up by the current. They can be exogenic
or endogenic
Saltation - ANS Sand, pebbles and gravel are temporarily lifted and bounced along the river bed in a
bouncing manner
Traction - ANS This is when the largest cobbles and boulders are rolled along the river bed. The largest
of those may only be moved during times of extreme flood
Suspended load - ANS This consists of fine particles of clay and silt which are dislodged and carried by
turbulence in a fast flowing river. This load is held in suspension within the river body, and increases in
amount towards the rivers mouth giving it its brown or black color
Solution - ANS This involves dissolved particles, especially if the bedrock is soluble and the river contains
acid. ( can come from erosion, pollution and chemical weathering
Conditions for braiding - ANS 1: variable discharge
2: banks Made up of loose incoherent material
3: the river must be transporting a large load
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