Processes of erosion, transportation+Deposition

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Processes of erosion- Definition of Hydraulic action
Hydraulic action is the sheer force of the water which breaks away the river bank sides.
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Processes of erosion- Definition of Abrasion
Eroded rocks picked up by the river scrape and rub the against the botton and sides of the river channel wearing it away.
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Processes of erosion- Definition of Attrition
Eroded rocks picked up by the river smash into each other, this breaks them down into smaller fragements and rounds of the edges
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Processes of erosion- Definition of Solution
River water dissolved some types of rock. (E.g chalk and limestone)
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Processes of Transportation- Definition of Traction
Large particles(e.g boulders) are pushed along the river bed by the force of the water.
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Processes of Transportation- Definition of Saltation
Pebble-sized particles are bounced along the river bed by the force of the river bed.
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Processes of Transportation- Definition of Suspension
Small particles like salt and clay are carried along by the water
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Processes of Transportation- Definition of Solution
Soluble materials dissolve in the water and are carried along.
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What is deposition?
Deposition is when a river drops the eroded material its transporting. This happens when A river slows down (loses velocity)
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Why does a river lose velocity?
The volume in the river falls, The amound of eroded material in the water increases, The water is shallower(e.g inside of a bend), The river reaches the mouth
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Other cards in this set

Card 2

Front

Processes of erosion- Definition of Abrasion

Back

Eroded rocks picked up by the river scrape and rub the against the botton and sides of the river channel wearing it away.

Card 3

Front

Processes of erosion- Definition of Attrition

Back

Preview of the front of card 3

Card 4

Front

Processes of erosion- Definition of Solution

Back

Preview of the front of card 4

Card 5

Front

Processes of Transportation- Definition of Traction

Back

Preview of the front of card 5
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