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Geography > erosion > Flashcards

erosion Flashcards

1
Q

constructive wave

A

strong swash, weak backwash, elliptical orbit, shallow beach, deposits material

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2
Q

destructive wave

A

weak swash, strong backwash, circular orbit, steep beach, removes material

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3
Q

fetch

A

the distance a wave travels

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4
Q

swash

A

water and the material it is carrying that is pushed up a beach

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5
Q

backwash

A

water and the material it is carrying that is pulled back down a beach

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6
Q

erosion

A

the wearing down of a coastline and its rocks

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7
Q

transportation

A

the carrying of sediment by the waves

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8
Q

deposition

A

the dropping of sediment by the waves

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9
Q

attrition

A

smaller / rounded

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10
Q

hydraulic action

A

cracks / pressure

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11
Q

solution

A

salts + water / dissolve

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12
Q

abrasion

A

fragments / hurled

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13
Q

CCASS

A

crack / hydraulic action + abrasion / cave / weathering + erosion / headland / arch / collapses / stack / undercutting / stump

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14
Q

headland

A

a strip of land that sticks out into the water with a bay on either side, caused by the erosion of a cliff with bands of resistant and non-resistant rock

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15
Q

wave cut platform

A

a platform of rock at the base of a cliff, exposed only at low tide

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16
Q

wave cut notch

A

groove in the base of a cliff, undercut by the waves

17
Q

stump

A

a small lump of rock, protruding from the water that occurred after the undercutting of a stack

18
Q

three types of rock

A

igneous, sedimentary, metamorphic

19
Q

types of transportation

A

traction, saltation, suspension, solution

20
Q

traction

A

rolled

21
Q

saltation

A

bounced

22
Q

suspension

A

suspended

23
Q

solution

A

dissolved

24
Q

longshore drift

A

prevailing wind direction / angle / swash / angle / backwash / moving the beach

25
Q

bay

A

a partially enclosed area with hills or cliffs around it, formed by waves eroding an area of the cliff faster because the rock is less resistant

26
Q

beach

A

a strip of land covered in sediment at the edge of a body of water

27
Q

igneous

A

made when magma or lava cools

28
Q

metamorphic

A

made when rock experiences extreme heat or pressure

29
Q

sedimentary

A

made when sediment accumulates over time and is compressed

30
Q

spit

A

longshore drift / continues / deposits / spit / mud flats + salt marshes / river prevents / hooked end

Geography (2 decks)

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