Landforms of River Erosion Flashcards

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What are interlocking spurs?
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Interlocking spurs are fingers of land that jut out into the river valley that streams and rivers are forced to flow around in the upper course.

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

What are interlocking spurs?
Give three characteristics of a gorge.
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Characteristics of a gorge include:

  • very narrow valley
  • very steep, high valley sides is
  • located immediately downstream of a waterfall
  • river channel takes up most, if not all, of the valley floor
  • boulders litter the river bed
  • turbulent, fast-flowing whitewater

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

Give three characteristics of a gorge.
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?
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?
What are rapids?
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Rapids are fast flowing, turbulent sections of the river where the bed has a relatively steep gradient. They are found in the upper course of the river.

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

What are rapids?




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