costal landscape development

Question 1

What is isostatic sea level change

Answer 1

-local change
-caused by the crust rising or falling in relative to sea-level
-caused by tectonic processes or the depression of the crust into the mantle by the weight of an ice sheet. When it melts the weight is released and the crust rebounds

Question 2

Where in England is rising and where is falling

Answer 2

-Scotland and the North-west of England is rising by around 1.5mm per year
-this causes the south-east to subside by around 1mm per year

Question 3

What is eustatic change sea level change?

Answer 3

-change which affects the whole planet
-caused by thermal contraction/expansion or changes in glacial processes

Question 4

What are the emergent coastal landforms

Answer 4

-arches, stacks, stumps
-raised beaches

Question 5

What are the submergent coastal landforms?

Answer 5

-rias
-fjords
-dalmatian coasts

Question 6

What are Rias

Answer 6

when rising sea levels flood narrow winding inlets and river valleys

Question 7

what are fjords

Answer 7

when rising sea levels flood deep glacial valleys to create natural inlets and harbours