Emergent Coastlines (AQA A-Level Geography): Flashcards
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Practise the cards
10 cards from this deck
Emergent coastlines form when
Emergent coastlines form when
Land rises relative to sea level or sea level falls
Fjords
Fjords
Drowned glacial valleys flooded by rising sea levels
Fjords valley shape
Fjords valley shape
Deep U-shaped valleys carved by glaciers
Fjord threshold
Fjord threshold
Shallower section at entrance where glacier ice thinned
Dalmatian coast pattern
Dalmatian coast pattern
Valleys run parallel to coastline, not at right angles
Raised beach
Raised beach
Former wave-cut platform now above present sea level
3 raised beach levels in W Scotland (metres above sea)
3 raised beach levels in W Scotland (metres above sea)
8 metres, 15 metres, and 30 metres
Sea level rise rate 1993-2015
Sea level rise rate 1993-2015
3.6 mm per year
Predicted sea level rise by 2100
Predicted sea level rise by 2100
30 cm to 110 cm above 1990s levels
Two main causes of sea level rise
Two main causes of sea level rise
Thermal expansion of oceans and melting ice sheets/glaciers