coastlines of submergence and emergent

Question 1

submergent landforms=

Answer 1

they occur when the sea levels rise or the coastlines sink in relation to the sea

Question 2

RIAS=

Answer 2

they are created by rising sea levels growing river valleys
-the floodplains of a river will vanish beneath the rising water
-they have a long section and a typical cross profile of a river valley
EXAMPLE: in Devon and Cornwall sea levels rose and drowned the valleys of the river near Dartmoor

Question 3

fjords=

Answer 3

are drowned glacial valleys found along coasts Norway and new wetland

• they have steep valley sides and are fairly straight and narrow
• they are u shaped unlike rias they are not deepest at the mouth- they have a glacial rock basin with a shallower section at the end known as the threshold

Question 4

Dalmatian coast

Answer 4

when the topography of the land runs parallel to the coastline and becomes flooded by sea levels rise leaving behind narrow rugged islands
-they run parallel to the coast whereas the rias and fjords run at a right angle
EXAMPLE: croatian coast

Question 5

emergent features=

Answer 5

where the land has been raised in relation to the coastline

Question 6

raised beaches

Answer 6

areas of former wave cut platforms and beaches which are at a level higher than the sea level
-landforms such as cliffs, wave cut notches, caves can be seen
EXAMPLE: they are common around the coast of western Scotland

Question 7

marine platform

Answer 7

when land from formerly submerged land has become exposed by uplift or lowering of sea levels
-difference between a raised beach and a marine platform is a marine platform is part of gently sloping shelf whose gradient is continued for some distance offshore