Processes of glacial weathering

Question 1

Processes of glacial weathering

Answer 1

• Frost action/ shattering

- Nivation

Question 2

Nivation

Answer 2

• Weathering and Erosion = Nivation
• Snow gets into a hollow in the ground
• Temperatures fluctuate around 0 degrees
  = Thawing and Freezing
• Freezes = frost shattering and bits of rock at the base of the hollow breaks off
• Melts = meltwater carries the broken bits of rock away
• Slopes collapse = waterlogged + eroded
• Hollow becomes deeper + wider
• Hollows formed are nivation hollows = corries