Coasts Flashcards
What are examples of submergent and emergent coasts
- emergent = raised beaches, West Scotland
- submergent = fjords, Norway
What are some examples of igneous rocks
- granite
- diorite
- basalt
What are some examples of sedimentary rocks
- limestone
- sandstone
- chalk
- shale
What are some examples of metamorphic rocks
- marble
- schist
- gneiss
- slate
What are some examples of unconsolidated materials
- boulder clay
- glacial till
Which parts of the UK have a resistant, rocky coastlines
- West Coast
- Cornwall
- North West Scotland
Which parts of the UK have a coastal plains landscapes
- Eastern Coast
- East Anglia
What are some pioneer species in psammosere succession
- marram grass
- sand couch-grass
- lyme grass
what is burrowing
when animals create holes in the ground, exposing rocks to the environment
what is root action
when roots grow into cracks and fissures, forcing the rocks apart
what can root action cause regarding mass movement
rockfall on vegetated cliff tops
what is carbonation
the slow dissolution of limestone due to weak acidic rainfall, carating calcium bicarbonate
what isostatic changes are occuring around the UK
the unloading of ice sheets in the north causes the crust to rise. Which causes the south to sink
what are relict features
when erosional processes are halted due to the beach being raised, leaving erosional features like caves, stacks, arches
how many megacities exist
33 megacities
how fast are sea levels rising in Kiribati
1.2cm/year
How has the Kiribati Government tackling the threats of sea level rise
- bought land in Fiji
- made agreements with neighbouring countries to allow climate migration
why is Jakarta sinking
inhabitants are illegally draining underground aquifers due to a lack of acces to public drnking water
What is the rate of subsidence in Jakarta
25cm/year
what problems does the Holderness coast face
- boulder clay makes up majority of the coast
- LSD transports sediment downstream
- deep water=faster waves
- large fetch from northern winds