Rivers - Erosion, transport and Deposition
- Created by: BeckyyWilliams
- Created on: 06-04-14 18:47
View mindmap
- Rivers
- Erosion
- Hydraulic Action
- The sheer force of flowing water washes away any loose material on the bed and banks.
- Abrasion
- Solution
- The slightly acidic river water dissolves rocks made of calcium carbonate.
- Attrition
- Stones collide together and are broken into smaller, rounder stones.
- Hydraulic Action
- Transport
- Traction
- Stones are rolled along the river bed by the force of flowing water.
- Saltation
- Small stones are bounced along the river bed by flowing water
- Suspension
- Particles of silt and clay float and are carried along by the flowing water
- Solution
- Some minerals dissolve in water.
- Limestone, for example dissolves slowly.
- Some minerals dissolve in water.
- Traction
- Deposition
- If a river slows down because there is less water in it, or the land is flatter, the river will have less energy to carry its load.
- Some of this material will be deposited.
- Rivers slow down and deposit material on the inside of meander bends, in shallow water and when they reach the sea.
- If a river slows down because there is less water in it, or the land is flatter, the river will have less energy to carry its load.
- Erosion
Comments
No comments have yet been made