River processes

HideShow resource information
  • Created by: Lydia
  • Created on: 17-01-13 17:58

Erosion

Wearing away of land or soil by the action of wind, water or ice

1 of 12

Deposition

WHEN THE RIVER RUNS OUT OF ENERGY AND DEPOSITS ITS LOAD

2 of 12

Attrition

ROCKS/BOULDERS TRANSPORTED BY RIVERS AND BREAK INTO SMALLER PIECES. (SIZE AND SHAPE CHANGE)

3 of 12

Abrasion

RUBBING AND SCOURING EFFECT OF MATERIAL CARRIED BY RIVERS ON THE RIVER BED/BANKS

4 of 12

Hydraulic Action

SHEER FORCE OF WATER BREAKING OFF SMALL PIECES OF ROCK FROM THE RIVER BED

5 of 12

Corrosion

ACIDS IN THE RIVERS AND WAVES DISSOLVE ROCKS BY CHEMICAL ACTION

6 of 12

Vertical Erosion

  when a river cuts down towards sea level- lots of potential energy - high above sea level

7 of 12

Lateral Erosion

VALLEY IS MUCH WIDER BECAUSE THE RIVER ERODES SIDEWAYS

8 of 12

Solution

DISSOLVED MATERIAL IS TRANSPORTED BY RIVER

9 of 12

Suspension

FINE MATERIAL, LIGHT ENOUGH TO BE CARRIED BY THE RIVER; ALSO DISCOLOURS THE WATER

10 of 12

Saltation

SMALLER STONES BOUNCE ALONG THE RIVER BED

11 of 12

Traction

LARGE ROCKS & BOULDERS ARE ROLLED ALONG THE BED OF THE RIVER

12 of 12

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Water and rivers resources »