2B.3 - Rates of coastal recession and stability depend on lithology and other factors Flashcards
1
Q
Types of bedrock (3)
A
Igneous; sedimentary & metamorphic
2
Q
Define ‘Strata’
A
Layers of rock
3
Q
Differential erosion of alternating strata in cliffs produces_____ & influences _____
A
Complex cliff profiles & recession rates
4
Q
Define “permeable” and hence, “impermeable”
A
“allowing liquids or gas to pass through it” & “not allowing gas to pass through it”
5
Q
Define “resistant” and hence, “not resistant”
A
in terms of erosion: “not eroded easily” & “eroded easily”
6
Q
Why is vegetation important in stabilizing sandy coastlines?
A
Because the roots grow underneath the sand and bind the dunes together
7
Q
What is an estuarine area?
A
The area around where an estuary and the sea meet
