Chapter 5 - Costal Change And Conflict Flashcards

1
Q

What is the difference between concordant and disconcordant coastlines

A

Concordant move with the coastline whereas disconcordant are at 90° to the coast

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2
Q

What are the main costal landforms caused by erosion

A
Caves
Arches
Stacks 
Stumps
Headlands
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3
Q

What are the features of a destructive wave

A

Weak swash, strong backwash

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4
Q

What are the main types of costal erosion

A

Hydrolic action
Abrasion
Attrition
Solution

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5
Q

what are the sub aerial processes (weathering)

A

mechanical
chemical
biological
mass movement

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6
Q

what are the four ways sediment moves

A

longshore drift
transportation
deposition

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7
Q

what is the affect of swash and backwash on sediment on a beach

A

swash pushes sediment in. backwash removes it

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8
Q

how are cured beaches formed

A

waves bending or refracting when entering a bay

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9
Q

what beach features does longshore drift causes

A

bars and spits

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10
Q

what rocks are present at Holderness and what is the effect of them

A

Soft clay erodes leading to a receding coastline by around 2m a year

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11
Q

what is done to prevent loosing costal settlements

A

hard engineering such as groynes

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12
Q

what are the two engineering types with examples

A

HARD
sea wall
groynes

SOFT
beach replenishment
slope stabilisation

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