River Landforms – Mature Stage (Leaving Cert Geography): Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
Meanders
Meanders
S-shaped loops in middle course of a river
Fastest water location in meander
Fastest water location in meander
Outer bend
Main process on meander's outer bend
Main process on meander's outer bend
Lateral erosion
Feature on outer bank from erosion
Feature on outer bank from erosion
River cliff
Process on meander's inner bend
Process on meander's inner bend
Deposition of sediment
Feature on inner bank from deposition
Feature on inner bank from deposition
Slip-off slope or point bar
Meander migration
Meander migration
Meanders moving downstream over time
What bluff line marks
What bluff line marks
Furthest extent of meander migration and floodplain edge
Floodplain definition
Floodplain definition
Wide, flat valley floor covered during floods
Two types of floodplains
Two types of floodplains
Erosional and depositional
Alluvium
Alluvium
Fine sediment deposited during floods
Why floodplains are fertile
Why floodplains are fertile
Alluvium creates nutrient-rich soils
How floodplains form
How floodplains form
Meander migration and periodic flooding
Erosional floodplain formation
Erosional floodplain formation
Removal of interlocking spurs by meander migration
Irish rivers with extensive floodplains
Irish rivers with extensive floodplains
Shannon, Liffey, and Lee