Flashcards in EQ1: Why are coastal landscapes different and what processes cause these differences? Deck (16):
interface between the land and water, support many plants and animals.
classification of coasts using their geology, jointing, dip, faulting, and folding.
coastal sediment returns to the visible portion of a beach.
inputs and outputs remain in balance.
processes of weathering (breakdown in situ) and mass movement.
beds, layers, rocks run parallel to the coast. Dalmatian (croatia) and Haff (the Curonian Lagoon).
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.
current geological epoch, started 11,500 yrs ago when glacial retreat began marking end of glacial phase.
planar fracture resulting from mass movement
pore water pressure
pressure of groundwater held within soil or rock in pores
directional cumulative change in types of species that occupy an area in a given time
what features make Holderness coastline distinctive?
- chalk headlands (Flamborough Head) and cliffs (Mappleton)
- retreating clay cliffs of Holderness Bay
- 6km spit at Spurn Head
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.
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.