chalk, Sandstone, Limestone, SlitStone. Sedimentary rocks may contain fossils of animals and plants trapped in the sediments as the rock was formed.s
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Mechanical Weathering
Mechanical weathering takes place when rocks are broken down without any change in the chemical nature of the rocks.
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Biological Weathering
Animals and plants wearing away rocks
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Chemical Weathering
The weathering of rocks by chemicals
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How are meanders formed
As the river erodes laterally, to the right side then the left side, it forms large bends, and then horseshoe-like loops called meanders.
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How are ox bow lakes forned
As the river breaks through, eg during a flood when the river has a higher discharge and more energy, and the ends join, the loop is cut-off from the main channel. The cut-off loop is called an oxbow lake.
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How do saturated conditions affect a hydrograph
Saturated conditions mean more surface run off so a higher river discharge and shorter lag time.
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How are Spits formed
Spits are formed through freeze thaw weathering.
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What are the pros and cons of groynes
Pros:Creates wider beaches which slows down waves, Fairly Cheap. Cons: Makes beaches further down the coast narrower, narrower beaches don't protect the coast as well
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Other cards in this set
Card 2
Front
Mechanical weathering takes place when rocks are broken down without any change in the chemical nature of the rocks.
Back
Mechanical Weathering
Card 3
Front
Animals and plants wearing away rocks
Back
Card 4
Front
The weathering of rocks by chemicals
Back
Card 5
Front
As the river erodes laterally, to the right side then the left side, it forms large bends, and then horseshoe-like loops called meanders.
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