V Shaped Valleys & Interlocking Spurs

Question 1

When are they formed

Answer 1

Youthful stage

Question 2

Vertical erosion

Answer 2

The sheer force of the water (hydraulic action) can cut straight through a lot of rocks and continue straight down, creating a narrow, deep valley

Question 3

Freeze thaw action

Answer 3

Water also gets through the cracks nearby and freeze action occurs
When breaking down, the rock will go into the river downstream as part of the rivers load

Question 4

Examples

Answer 4

River Liffey, Moy and Lee

Question 5

Interlocking spurs

Answer 5

When the river can’t break down the harder rock, they’ll do their best to go around it therefore creating these zips of shapes.
As the river descends from the highland, it begins to meander between spurs which interlock down the valley.

Question 6

Examples of interlocking spur

Answer 6

River Barrow and Slaney

Question 7

Weathering

Answer 7

Breaking down rocks and soils by rain, wind and sun. This causes the slopes to become unstable.

Question 8

Mass Movement

Answer 8

When a large amount of material (e.g. soil and rocks) move at once.