EQ1: Why are coastal landscapes different and what processes cause these differences? Flashcards Preview

Coastal Landscape and Change > EQ1: Why are coastal landscapes different and what processes cause these differences? > Flashcards

Flashcards in EQ1: Why are coastal landscapes different and what processes cause these differences? Deck (16):
1

littoral zone

interface between the land and water, support many plants and animals.

2

cliff profile

classification of coasts using their geology, jointing, dip, faulting, and folding.

3

coastal accretion

coastal sediment returns to the visible portion of a beach.

4

dynamic equilibrium

inputs and outputs remain in balance.

5

sub-aerial processes

processes of weathering (breakdown in situ) and mass movement.

6

concordant coastlines

beds, layers, rocks run parallel to the coast. Dalmatian (croatia) and Haff (the Curonian Lagoon).

7

discordant coastlines

bands of rocks and layers run perpendicular to the coast. geology alternates between strata of hard (granite) and soft rock (boulder clay) e.g. Holderness Coast.

8

holocene

current geological epoch, started 11,500 yrs ago when glacial retreat began marking end of glacial phase.

9

faults

planar fracture resulting from mass movement

10

unconsolidated sediements

loose materials

11

pore water pressure

pressure of groundwater held within soil or rock in pores

12

succession

directional cumulative change in types of species that occupy an area in a given time

13

what features make Holderness coastline distinctive?

- chalk headlands (Flamborough Head) and cliffs (Mappleton)
- retreating clay cliffs of Holderness Bay
- 6km spit at Spurn Head

14

how does the presence of people affect Holderness Coast

ppl turn physical processes into hazards. Inc population bc of retirement, development of leisure and holiday facilities, caravan parks increase he rick of erosion resulting in life and property loss.

15

how does interfering with natural processes affect Holderness Coast

processes e.g. longshore drift or unsuitable defence's downrift impacts groynes at Mappleton. sediment cant build beaches so rapid erosion due to sediment starvation further down coastline at Great Cowden.

16

how does global warming affect Holderness Coast

global warming and short term climate changes create SLR and inc storminess. Spurn Head and Humber Estuary at great risk from coastal flooding and erosion.