1. Features of EROSION & Features of DEPOSITION
RIVERS
Features of EROSION
&
Features of DEPOSITION

2. River erodes on the outside of the bend of the meander and deposits on the inside of the bend.
A Meander in a river

3. The river’s speeds around the outside of the bend as it cuts its way; the water is much slower on the inside of the bend where mud and silt etc are dropped or deposited.
Deposition

4. Features of deposition Beaches spits
Sea
Features of deposition
Beaches
spits

5. Material that is transported by the waves along a coastline is eventually deposited forming distinctive deposition features.
The sea
Coastal Deposition Landforms: Features and Formation

6. These are two main deposition features that you need to learn the formation of. These are: 1. Beaches 2. Spits
Sea deposition
Beaches and spits

7. Features of coastal deposition
Beaches Beaches are the main feature of deposition found at the coast, these consist of all the material (sand, shingle etc.) that has built up between the high and low tide mark.
Features of coastal deposition
The main feature of coastal deposition is the BEACH

8. There are number of different sources of beach material - the main source being rivers, where fine muds and gravels are deposited at the river mouth.
Other sources of beach material include longshore drift (bringing material from elsewhere along the coast); constructive waves (bringing material up the beach from the sea) and from cliff erosion.
Beaches
The material that makes up a beach comes from…

9. As constructive waves build up beaches, they often form ridges in the beach known as berms.
The berm highest up the beach represents the extent to which the water has reached during high tide, aka the high water mark.

10. Longshore drift moves material along the coastline.
A spit forms when the material is deposited (or left behind / dropped).
Over time, the spit grows and develops a hook if wind direction changes further out.
Waves cannot get past a spit, which creates a sheltered area where silt is deposited and mud flats or salt marshes form.
Spits
Spits are long narrow ridges of sand and shingle which project (stick out) from the coastline into the sea.

11. This spit is approximately 20 miles long
Farewell Spit ,
On New Zealand’s South Island
This spit is approximately 20 miles long

12. Features of erosion Headlands Bays Caves Arches Stacks Stumps
Sea
Features of erosion
Headlands
Bays
Caves
Arches
Stacks
Stumps

13. Headlands and bays

14. Headlands and bays
Headland
Bay
The headland is the part that remains out in the sea
The bay is the curved or scooped out space that the sea waves eroded

15. Caves, arches, stacks and stumps