Sources Of Sediment Flashcards
1
Q
What are the sources of sediment (5)
A
Wind
Longshore drift
Cliff erosion
Rivers
Offshore sources
2
Q
Where do rivers deposit (2)
A
Mouth and estuaries
Most coastal sediment is from rivers
3
Q
Cliff erosion example (2)
A
Along the Holderness Coast in Yorkshire
Unstable cliffs of boulder clay = soft rock
4
Q
What offshore source
A
Sediment from offshore = transferred into the coastal zone by waves, tides
and currents
5
Q
Examples of offshore sources in UK (3++)
A
Sea levels rose at the end of the last glacial period = coarse sediment bulldozed onto the south coast of England = formed Chesil Beach in Dorset
Storm surges can result in inputs of sediment into the coastal system
