The Holderness coast Flashcards
Where is the Holderness located ?
North East coast of Great Britain
What does it form a sub cell in?
Sediment cell 2
What is the erosion rate along the coast ?
2-12m/ year
What are the 3 distinctive coastal units along the Holderness ?
- Flamborough head
- Bridlington bay to Spurn head
- Spurn head
How many villages have already been lost due to erosion along the Holderness ?
30
Give the significance of the Holderness coastline
Europe’s fastest eroding coastline
What type of coastline is the Holderness ? (2 features)
- High energy coast
- Disconcordant coastline
Where does deposition occur ?
When ocean currents meet the outflow of Humber river from the estuary
Why does transportation occur ?
Prevailing wind from NE creates ocean currents
What type of mass movement process occurs mainly ?
Slumping
Describe the geology of the Holderness
Mainly till boulder clay which was deposited by glaciers . Chalk a sedimentary rocks form the headlands
How does low pressure affect the coastal system ?
Areas of low pressure move down the North Sea which funnels water to create storm surges
Where do headlands and wave cut platforms form ?
Headlands in the North as the boulder clay overlies chalk. Wave cut platforms near Sewerby
Where do cliff profile features form ?
Flamborough head
Where do beaches form ?
South of Flamborough head in Bridlington
Where do sand dunes form ?
Spurn head
Where has a spit formed ?
Spurn head accross the mouth of the Humber estuary
Where have mudflats and saltmarshes formed ?
Landward side of the spit at spurn head
Where do cliffs slump ?
Around Atwick sands
Where is there a major faultline in the chalk ?
Selwicks Bay
Give a statistic about Bridlington bay to Spurn head (temporal)
- Stretch of coast has retreated 5km since Roman times
How long is the sea wall at Bridlington ?
4.7km
How much did the groynes cost at Mappleton ?
£2 million
Give the statistic about Easington
Village has 700 people but revetments infront of the gas terminal only extend for 1km
