FLUVIAL PROCESSES

?
Erosion - hydraulic action
- Force of water breaks rock particles away from river channel.
1 of 10
Erosion - abrasion
- Eroded rocks picked up by the river scrape and rub against channel, wearing it away. - Most common.
2 of 10
Erosion - attrition
- Eroded rocks picked up by river smash into each other and break into smaller fragments. - Their edges also get rounded off as they rub together. - The further the material travels, the more eroded it gets. - Decreases particle sizes during course.
3 of 10
Erosion - solution
- River water dissolves some type of rock, e.g. chalk and limestone.
4 of 10
Transportation - traction
- Large particles like boulders are pushed along river bed by force of water.
5 of 10
Transportation - saltation
- Pebble-sized particles are bounced along river bed by force of water.
6 of 10
Transportation - suspension
- Small particles like silt and clay are carried along by the water.
7 of 10
Transportation - solution
- Soluble materials dissolve in the water and are carried along.
8 of 10
What is deposition?
- When river drops eroded material its transporting. - Happens when river slows down (loses velocity).
9 of 10
Reasons why rivers slow down and deposit material
- Volume of water in river falls. - Amount of eroded material in the water increases. - Water is shallower, e.g. on inside of river bend. - The river reaches its mouth.
10 of 10

Other cards in this set

Card 2

Front

Erosion - abrasion

Back

- Eroded rocks picked up by the river scrape and rub against channel, wearing it away. - Most common.

Card 3

Front

Erosion - attrition

Back

Preview of the front of card 3

Card 4

Front

Erosion - solution

Back

Preview of the front of card 4

Card 5

Front

Transportation - traction

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all PHYSICAL LANDSCAPES OF THE UK resources »