coasts 1 - overview

Question 1

littoral zone

Answer 1

Series of sub zones(nearshore, backshore, foreshore, offshore) to represent the features of the wider coastline from sea to land.

Question 2

coastal classification

Answer 2

Coasts are dynamic landscapes influences by long and short term factors which include geology and vegetation.

Question 3

rocky coasts

Answer 3

result from resistant geology

Question 4

resistant geology

Answer 4

due to erosive forces of the sea, rain and wind

Question 5

where are coastal plains landscapes found

Answer 5

near areas of low relief and are a result from supply of sediment from different terrestrial and offshore sources (low energy enviromnents)

Question 6

what do geological structures influence`

Answer 6

the development of coastal landscapes at a variety of scales, headlands and bays on discordant coastlines
effects the formation of cliff profiles

Question 7

what are geological processes responsible for`

Answer 7

formation of concordant coasts and discordant coastlines

Question 8

rates of coastal recession and stability depends on what

Answer 8

lithology and other factors

Question 9

lithology

Answer 9

character of rock formation

Question 10

bedrock lithology and unconsolidated material geology are important for?

Answer 10

understanding rates of coastal recession (igneous, sedimentary and metamorphic)

Question 11

what does differential erosion of alternating strata in cliffs (permeability and resistance) produce

Answer 11

complex cliff profiles and influences recession rates

Question 12

why is vegetation important in stabilising sandy coastlines

Answer 12

through dune successional development on sandy coastlines and salt marsh successional development in estuarine areas (long roots = stability)

Question 13

how does marine erosion contribute to coastal landscapes 1

Answer 13

by creating distinctive coastlines and different wave types influencing beach morphology and sediment profiles

Question 14

what can the erosional processes be influenced by

Answer 14

wave type, size and lithology

Question 15

erosional processes

Answer 15

hydraulic action, corrosion, abrasion and attrition

Question 16

what distinctive landforms can erosion create?

Answer 16

wave cut notches, wave cyt platforms, cliffs, cave arch stack stump sequence`

Question 17

what is sediment transportation affected by

Answer 17

angle of the wave attack, tides and currents and the process of longshore drift`

Question 18

how does sediment transportation and deposition contribute coastal landscapes

Answer 18

by creating distinctive landforms