Corrie Formation

Question 1

First step

Answer 1

Snow builds up in hollows on north and east facing slopes

Question 2

Second step

Answer 2

Snow turns into ice and moves downhill

Question 3

Third step

Answer 3

Ice breaks and pulls rocks from Blackwall making it steep

Question 4

Fourth step

Answer 4

Ice scrapes the hollow, deepening it into bowl shape

Question 5

Fifth step

Answer 5

Less erosion at front forms à rock lip

Question 6

Sixth step

Answer 6

Moraine adds height to the lip

Question 7

Seventh step

Answer 7

Rock lip and moraine block hollow like a dam

Question 8

Eighth step

Answer 8

After ice melts, à tarn forms in hollow