River Erosion Flashcards
What is attrition?
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Attrition is when sediment particles knock against the bed or each other and break, becoming more rounded and smaller as you move down the river.
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What is attrition?
What is the solution?
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Solution (or corrosion) is when acidic water dissolves rocks such as chalk or limestone.
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What is the solution?
What happens to the shape and size of bed load as you move down the river?
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It becomes more rounded and smaller.
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What happens to the shape and size of bed load as you move down the river?
Identify the four processes of erosion that occur within a river.
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Abrasion or corrasion, attrition, hydraulic action and solution or corrosion.
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Identify the four processes of erosion that occur within a river.
What is vertical erosion?
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Vertical erosion involves the wearing away and deepening of the river bed. This is mostly by hydraulic action. It is most common in the upper course of the river.
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What is vertical erosion?