formation of an oxbow lake Flashcards

(8 cards)

1
Q

stage 1 of oxbow lake

A

the meander starts off as a slight bend and flows slowly on the inside and fast on the outside

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2
Q

stage 2 of oxbow lake

A

the outside of the bend is eroded away whereas the inside is deposited

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3
Q

stage 3 of oxbow lake

A

this deposition and erosion eventually forms a meander

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4
Q

stage 4 of oxbow lake

A

it bends more and more over the years until a tight loop is formed

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5
Q

stage 5 of oxbow lake

A

the water level eventually becomes high and gains enough energy to go straight across the loop rather than around it

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6
Q

stage 6 of oxbow lake

A

this is called a meanser cut-off

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7
Q

stage 7 of oxbow lake

A

the river keeps its new channel so the tight loop is left as its oxbow lake

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8
Q

stage 8 of oxbow lake

A

after a long time, it silts and dries up, meaning that plants can finally grow on it

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