EQ2: How do characteristic coastal land forms contribute to coastal landscapes? Flashcards Preview

Coastal Landscape and Change > EQ2: How do characteristic coastal land forms contribute to coastal landscapes? > Flashcards

Flashcards in EQ2: How do characteristic coastal land forms contribute to coastal landscapes? Deck (12):
1

waves

constructive (North East- Druridge Bay) or destructive (South West- Cornwall).

2

erosion

influenced by wave type, size and lithology:
- hydraulic action
- abrasion
- attrition
- solution

3

erosional land forms

- wave cut notches
- wave cute platform
- cave, arch, stack and stump sequence

4

sediment transport and deposition

infuenced by angle of wave attack, rides, currents and long shore drift

5

depositional landforms

- beaches e.g. Laguna beach
- spits e.g. Spurn Head
- bars e.g. Slapton
- Barrier beach e.g. Chesil Beach
- cuspate foreland e.g. Dungeness ( contains 40% of all British shingle).

6

weathering

mechanical (freeze-thaw), biological (vegetation) and chemical (carbonate)

7

mass movement

blockfall (St. Oswald's Bay), rotational slumping and landslides

8

mass movement landforms

- rotational scars
- scree slopes
- terraced cliff profiles

9

sediment cell

11 in the UK. a stretch of coastline where sediment is sourced (eroding cliffs), transported (transfer zones e.g. longshore drift) and deposited (creates landforms e.g. spits)

10

Holderness Coast sediment cell

source: Holderness Coast
transfer zone: longshore drift with addition of sediment from Humber Estuary
sink: Spurn Head

11

positive feedback

changes balance until a new equilibrium is reached

12

negative feedback

usually helps maintain balance within the system