submergent landforms Flashcards
(8 cards)
1
Q
what are the submergent landforms
A
single beaches
rias
fjords
2
Q
what is a ria
A
submergent river valley, where sea level rise drowns the lower part of the river and its floodplain
3
Q
what is the ria case example
A
KINGSBRIDGE ESTURARY DEVON
4
Q
what is a fjord
A
submerged glacial valley with steep cliff like sides.
with a U shaped cross section
5
Q
what is the fjords case example
A
SOGNE FJORD NORWAY
6
Q
how do shingle beaches form
A
as sea levels rise the sediment is pushed onshore creating beaches
7
Q
modification of rias and fjords
A
- marine erosion will continue to act on the sides
-weathering and mass movement will reduce steepness of valley sides
7
Q
modification of shingle beaches
A
- modification by longshore drift and erosion
