Landforms of River Erosion Flashcards

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How are rapids formed?
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Rapids form when there is vertical bedding which is when alternate bands of hard and soft rock cross the channel. Differential erosion will occur as the soft rock is more easily eroded than hard rock. This makes the riverbed uneven and river’s flow becomes turbulent leading to white water sections typical of rapids.

Find out more about the landforms of erosion in the upper course of a river.

How are rapids formed?
Draw a simple diagram to show the main features of a meander.
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meander diagram

Find out more about meanders and oxbow lakes.

Draw a simple diagram to show the main features of a meander.
What is a gorge?
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A gorge is a narrow, steep-sided valley, with bare, rocky walls.

Find out more about the landforms of erosion in the upper course of a river.

What is a gorge?
How does a waterfall create a gorge?
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As a waterfall retreats, it leaves behind the steep-sided valley which is called a gorge. Every time the overhanging rock breaks off the gorge retreats and grows longer.

Find out more about the landforms of erosion in the upper course of a river.

How does a waterfall create a gorge?
Give three characteristics of rapids.
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The characteristics of rapids include:

  • the turbulent flow of water
  • white water
  • uneven river bed
  • steep gradients.

Find out more about the landforms of erosion in the upper course of a river.

Give three characteristics of rapids.




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