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River landforms
deposition
Question | Answer |
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What occurs at the old age stage ? | A river has stopped eroding as it has lost most of its energy deposition is the main process that occurs |
What is an oxbow lake? | an oxbow lake is a horseshoe-shaped lake that has been cut off from a river e.g The moy and the river Shannon |
Does erosion play a role in its formation? | Although oxbow lakes are a feature of deposition the process of erosion play a part in their formation |
How does the fast flowing water play a role in the erosion aspect of an oxbow lake? | the fast flowing wateris unable to flow around the meander so it cuts through the narrow strip of land between the outer bends of the meander straightening the rivers course. |
How is it being cut off from the river? | once the flood has subsided , deposition occurs once again. deposition seals off the ends of the meander completely cutting it off from the main river. |
what is a meander? | a winding curve or bend of a river |
what is it referred to once it has dried up? | A scar or mort lake |