Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geography studies phyical > Coastal Weathering > Flashcards

Coastal Weathering Flashcards

You may prefer our related Brainscape-certified flashcards:
U.S. Geography flashcards World Geography flashcards
1
Q

Mechanical Weathering

A

Is the break down of rocks without any chemicals change e.g freeze thaw Weathering

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Freeze thaw

A

Water enters crack e.g granite
Water 💦 freeze and expands 9% and gives the rock pressure
It thaws and contracts releasing pressures when melted
This continues to make cracks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Chemical Weathering

A

Breakdown of rock by changing its composition

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Carbonation Weathering

A

Rainwater has co2 dissolve in it which makes it a weak carbonic acid
This reacts with rock that contains calcium carbonate e.g limestone so rocks are dissolved in it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Mass movement

A

Shifting of rocks down slope by the force of gravity acting on the slope is greater than the force supporting

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Mass movement causes coast to

A

Retreat rapidly

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Slides mass movement

A

Material shifts in a straight line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Slumps mass movement

A

Material shifts with a rotation

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Rockfall

A

Material breaks up and falls down slope

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Mass movement is likely when

A

Materials are filled with water it acts like a lubricant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Swash

A

Movement of water on beach

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Backwash

A

Movement of water back into the sea

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Crest

A

Top of the wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Trough

A

The base of the wave

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Wave height

A

The vertical distance from trough to crest

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Wave length

A

The horizontal distance between two crest

17
Q

Wave frequency

A

The number of waves breaking per minute

18
Q

Fetch

A

The distance of open water over which the wind can blow the longer the fetch the more powerful the wave can become

19
Q

Constructive waves

A

Weak backwash strong swash
Builds up beach
Long length low frequency

20
Q

Constructive waves waves

A

strong swash as they have lots of energy which pushes the material up beach but little energy is left for the backwash

21
Q

Destructive waves

A

Weak swash strong back wash
Remove sediments of beach
Creates stumps and arches

22
Q

Destructive waves waves

A

Strong length high frequency

Strong back wash as they have plenty of energy left from swash

Geography studies phyical (46 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions