3.3.5

Processes of Erosion

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Processes of Erosion

Erosion is the wearing away of rock using movement. The sea can build up a lot of energy and move quickly with a lot of force. This can make erosion happen faster. There are 4 types of erosion:

Hydraulic action

Hydraulic action

  • Hydraulic action is where the force of the water hits against the river or sea bed and banks and causes the rock to break off.
Solution

Solution

  • Solution is where soluble rocks are dissolved by the water in the river or sea (limestone and chalk in particular). They are carried along with the river or sea.
Abrasion

Abrasion

  • Abrasion is where pieces of rock are picked up by the river or sea water and hit against the bed or the banks. This wears them away.
Attrition

Attrition

  • Attrition is where pieces of bedload (material carried by a river or seawater) are hit against one another. This causes them to break apart and become smaller and more rounded.
Jump to other topics
1

The Challenge of Natural Hazards

1.1

Natural Hazards

1.2

Tectonic Hazards

1.3

Weather Hazards

1.4

Climate Change

2

The Living World

2.1

Ecosystems

2.2

Tropical Rainforests

2.3

Hot Deserts

2.4

Tundra & Polar Environments

3

Physical Landscapes in the UK

3.1

The UK Physical Landscape

3.2

Coastal Landscapes in the UK

3.3

River Landscapes in the UK

3.4

Glacial Landscapes in the UK

4

Urban Issues & Challenges

5

The Changing Economic World

5.1

The Changing Economic World

5.2

Economic Development in the UK

6

The Challenge of Resource Management

6.1

Resource Management

6.2

Food

6.3

Water

6.4

Energy

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