GoConqr has a new look! Let us know what you think.

Sign up free

Flashcards

Geo: Holderness Coast

Muhammad Raza English 22 cards

Cards in this deck (22)

  1. 1What is flamborough head made of?Chalk, a resistant sedimentary rock.
  2. 2What is the strata of the rock in flamborough head?The strata is slightly horizontal, each line between each layer is reffered to as bedding planes.
  3. 3How is flamborough head weakened?Its weakened by vertical cracks/joints that form lines of weakness which are attacked by marine erosional processes which create erosional landforms.
  4. 4How was Selwicks Bay created?It was formed because of larger lines of weakness in the chalk (known as faults) have caused in displacement of whole sections of chalk via weathering and erosion which forms small bays like Selwicks.
  5. 5What do the waves do when they approach the headland (flamborough)?They refract as they approach flamborough which causes greater erosion on the exposed headland and depositon of a sandy beach in the beach where there is low energy.
  6. 6What is the Holderness coast known as?The fastest eroding coastline in Europe. Cliffs have eroded between 3km to 5km since Roman times.
  7. 7What is rhe yearly rate of erosion on Holderness?The rate of erosion is above 1m a year and are up to 10m a year in some places.
  8. 8What is an important input for the coastal system?The sediment eroded is an important input into the coastal system and is deposited as beaches (negative feedback) further south along the coasts as well at Spurn Head.
  9. 9Why is the rate of erosion low and/or high?Low: It is due to the weak and unconsolidated geology
    High: Long fetch (3000 from NE wind), powerful destructive waves, rotational slumping (especially when cliffs are saturated) and narrow beaches.
  10. 10How are storm surges created in the North Sea?The North Sea occasionally suffers from areas of extremely low pressure (depressions) which funnel water and create storm surges several metres high.
  11. 11How many lives were lost in a storm surge in 1953?More than 300 lives were lost in 1953.
  12. 12What is most of Holderness made of?Boulder Clay while Flamborough is made mostly of Chalk where it dips below rhe boulder clay.
  13. 13Where is Flamborough Head relative to Bridlington?Flamborough Head is just North of Bridlington.
  14. 14How did boulder clay come to Holderness Coast?The boulder clay was left behind by an ice sheet that covered the north when the ice melted after the last ice age.
  15. 15Why do Hornsea and Withernsea need protecting and what coastal management strategy has been put in place?They need protecting due to there being important coastal roads and with the towns being 'tourist towns'. The coastal management strategy in use is Hold the line where sea walls, groynes and rip-rap in use. Hornsea also has a revetment at the south end of the beach.
  16. 16Why does Mappleton need protecting and what coastal management strategy has been put in place?Because Mappleton has important coatal roads (B1242) and 50 properties. The coastal management strategy in use is Hold the line where £2 million was spent in 1991 on rock armour and 2 rock groynes. They have also used cliff regrading, cliff stabilisation usinf vegetation and cliff drainage to reduce rotaional slumping.
  17. 17Why does Easington need protecting and what coastal management strategy has been put in place?Easington has a gas terminal thay brings over 25% of the UK's natural gas though this is slowly being phased out. The coastal management strategy in use is Hold the line and they have used rock armour and cliff regrading to reduce the cliff angle.
  18. 18What is Spurn Head?Spurn head is a spit which has formed across the Humber estuary and it protects towns like Hull from the effects of storm waves and flooding.
  19. 19When did Spurn Head form?It formed 80000 years ago at the start of the holocene inter-glacial period.
  20. 20What organisation owns Spurn Head?Spurn head is owned by Yorkshire Wildlife Trust who do not maintain defences.
  21. 21What happened in 2013 at Spurn Head?The largest tidal surge in 60 years breached Spurn Head and destroyed buildings and the access road.
  22. 22What sort of change has played a part in the increased vulnerability of Spurn Head?Eustatic change and sea defences along the Holderness coas may have played a part in the increased vulnerability of Spurn Head so Yorkshire Wildlife Trust (YWT) have welcomed the managed retreat.

Information

Description
Flashcards on Geo: Holderness Coast, created by Muhammad Raza on 10/10/2018.
Created by
Muhammad Raza · Oct 2018
Updated
Oct 11, 2018
Views
1
Rating

More on Holderness Coast Case Study

Feedback

What is it about?

What do you think of the new look?

How do you like it?