What are the geomorphological processes ?

Question 1

What is attrition ?

Answer 1

Material being carried by the sea hit against each other becoming smaller, rounder an smoother.

Question 2

What is solution ?

Answer 2

Rocks, normally limestone or other rocks containing carbon, are dissolved though this is normally by rainfall and therefore not technically erosion.

Question 3

What is hydraulic action ?

Answer 3

Sheer force of water puts pressure on the rocks and forces them apart.

Question 4

What is abrasion ?

Answer 4

Material is used by the waves, e.g. shingle which is thrown at the cliff.

Question 5

What is wave quarrying ?

Answer 5

Cavitation which traps air causing huge pressure, which is released when wave withdraws.

Question 6

What are the 4 transportation methods ?

Answer 6

• Suspension
• Solution
• Traction
• Saltation

Question 7

What are the processes of deposition ?

Answer 7

This occurs where the water loses energy such as:
- The wave slows down after breaking
- Where the coastline changes direction
- Just before backwash
- Where accumulation is quicker then removal

Question 8

What does Aeolin mean ?

Answer 8

Carried/deposited by the wind

Question 9

Why is wind onshore during the day ?

Answer 9

Due to temperature differences

Question 10

How is sand picked up and moves ?

Answer 10

• Surface creep > rolls
• Saltation > bounces