Distinctive Landscapes - Holderness coast Flashcards
1
Q
How much erosion annum
A
2-3m
2
Q
What type of rocks are there
What happens to it
A
Chalk and boulder clay
Discordant heads and bays
Slumping
3
Q
Why are there powerful waves
A
Long fetch from the North Sea
4
Q
Mappleton defence
A
1991 £2 million on two rock groynes
Increase deposition to build a beach and reduce waves to not reach cliff
5
Q
Was the Mappleton defence good
A
Yes it stopped slumping and cliff erosion
No further down in Aldbrough
6
Q
What’s wrong at Aldbrough
A
previously 1m annum
now 2.5m and active landsides due to less sediment in the waves so it has greater erosion
7
Q
Mappleton affect other areas
A
More erosion at Aldbrough
Hence more deposition at Spurn Head
8
Q
How many people and how affected in Mapleton
A
Roughly 340
50 properties
Property price reduce as nearing coastline
