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Geography > Coastal erosion landforms > Flashcards

Coastal erosion landforms Flashcards

1
Q

What is a landform

A

A feature of the landscape which has been sculpted by erosion, transportation and deposition

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2
Q

What is a feature of the landscape which has been sculpted by erosion, transportation and deposition

A

A landform

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3
Q

What is erosion

A

The wearing away and removal of material by a moving force

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4
Q

What is the wearing away and removal of material by a moving force

A

Erosion

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5
Q

What is transportation

A

The movement of eroded material

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6
Q

What is the movement of eroded material

A

Transportation

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7
Q

What is deposition

A

When material is dropped due to water loosing energy

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8
Q

What it it called when material is dropped due to water loosing energy

A

Deposition

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9
Q

What factors influence coastal landforms

A

Geology and geological structure

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10
Q

What are the 3 features of hard rock

A

More resistant, impermeable and erodes 20mm per year

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11
Q

What are the 3 features of soft rock

A

Less resistant, permeable and erodes 20cm per year

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12
Q

What are some examples of hard rock

A

Granite, chalk and limestone

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13
Q

What type of rock is granite, chalk and limestone

A

Hard rock

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14
Q

What are some examples of soft rock

A

Clay and sandstone

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15
Q

What type of rock is caly and sandstone

A

Soft rock

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16
Q

What are faults

A

Vertical cracks in the rock

17
Q

What are vertical cracks in the rock

A

Faults

18
Q

What are joints

A

Horizontal cracks in the rock

19
Q

What are horizontal cracks in the rock

A

Joints

20
Q

What is a bedding plane

A

The surface between two layers of sedimentary rock

21
Q

What is the surface between two layers of sedimentary rock

A

A bedding plane

22
Q

What happens to rocks with more joints and faults, or a bedding plane

A

They erode faster, more lines of weakness

23
Q

What is strata

A

Layers of rock

24
Q

What are layers of rock called

A

Strata

25
Q

What are the 2 types of coastline

A

Concordant and discordant

26
Q

What is a discordant coastline

A

Where the geology alternates hard rock and soft rock perpendicular to the coast

27
Q

What is it called when the geology alternates hard rock and soft rock perpendicular to the coast

A

A discordant coastline

28
Q

What is a concordant coastline

A

The same type of rock running parallel to the coastline

29
Q

What is it called when the same type of rock runs parallel to the coastline

A

A concordant coastline

30
Q

Explain the formation of headlands and bays

A

There is a discordant coastline, both the soft and hard rock is eroded by hydraylic action and abrasion, the soft less resistant rock erodes faster creating bays, the hard resistant rock erodes slower creating headlands which stick out into the sea leaving them more vunerable to further erosion

Geography (11 decks)

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