coastal environments Flashcards

You may prefer our related Brainscape-certified flashcards:
1
Q

What is abrasion?

A

when material being transported wears away at a surface over time. carried by rivers glaciers the sea and wind

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

What is an arch?

A

a coastal feature formed by the meeting of two caves cut into either side of headland

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

What is attrition?

A

the gradual wearing down of particles by erosion as they collide with each other, making them smaller and rounder

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

What is backwash?

A

water from a breaking wave which flows under gravity down a beach and returns to the sea

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

What is a Bar?

A

a ridge like accumulation of coastal sediment exposed at low tide

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

What is a bay?

A

a wide coastal inlet that is open to the sea

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

What is beach replenishment?

A

dredging or pumping sand and shingle from the seabed to replace material that has been erode from a beach

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

What is a beach?

A

an accumulation of coastal sediment most often occurring in sheltered areas along the coast

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

What is berm?

A

a ridge of sand or shingle towards the top of the beach with a steep seaward slope

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

What is a cave?

A

a hollow cut by the sea into the base of a cliff

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

What is cliff regrading?

A

the deliberate lowering of an angle of a cliff face to make it safer and reduce landslides or collapse

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

What is a cliff?

A

a steep rock slope usually facing the sea

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

What is coastal cell?

A

a segment of coastline which is self contained in terms of the movement of sand and shingle

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

What is coastal management

A

looking after the coast and resolving any conflicts between users of the coast

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

What is a coastline?

A

the actual border between the land and the sea

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

What is a concordant coast?

A

a coastline created when alternating soft rock and hard rock occur one after another parallel to the sea and eroded at different rates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

What is corrosion?

A

the chemical erosion of rock over surfaces

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

What is cuspate foreland?

A

a triangular mass of sand and shingle deposited on t he coast where waves converge from opposite directions

19
Q

What is deposition?

A

the dropping of material that was being carried by a moving force, such as running water.

20
Q

What is a discordant coast?

A

a coastline created when alternating bands of hard and soft rock occur at right angles to the coast and are eroded at different rates

21
Q

What is an emergent coast?

A

a coastline that is experiencing either uplift of the land or a fall in sea level

22
Q

What is erosion?

A

the wearing away and removal of material by a moving force, such as running water

23
Q

What is an estuary?

A

the mouth of a river as it enters the sea

24
Q

What is a fetch?

A

the distance a wave has travelled from its origins to the coast where it breaks

25
Q

What is a fjord?

A

a long, narrow arm of the sea which is the result of the ‘drowning’ of a glaciated valley.

26
Q

What is hard engineering?

A

protecting the coast by building such structures as sea walls and groynes

27
Q

What is a headland?

A

an area of land jutting out into the sea

28
Q

What is hold the line?

A

a coastal management strategy aimed at protecting the coast and maintaining the coastline as it is

29
Q

What is hydraulic action?

A

erosion caused by the force of moving water

30
Q

What is a lagoon?

A

a bay totally or partially shut off from the sea by a bar or reef running across the entrance

31
Q

What is longshore drift?

A

the movement of sediments along the coast by wave action

32
Q

What is managed retreat?

A

a coastal management strategy of deliberately allowing the coastline to retreat but in such a way as to minimize possible damage

33
Q

What is marine reserve?

A

an area of the sea with some special or rare features (plant and animal life, coastal scenery, etc.) thought to be worth protection from human exploitation.

34
Q

What is mass movement?

A

the movement of weathered material down a slope or cliff due to the force of gravity

35
Q

What is a raised beach?

A

a former beach now standing above sea level and some meters inland

36
Q

What is a relict cliff?

A

a cliff that now lies above the reach of the sea due to a fall in sea level or a rise in the land.

37
Q

What is a ria?

A

the seaward end of a river valley that has been flooded as a result of a rise in sea level

38
Q

What is

A

any material ranging in size from fine silt to large boulders which has been transported and deposited, as for example by the sea or a river.

39
Q

What is

A

a form of mass movement in which material slides downslope and rotates backwards as it does so.

40
Q

What is

A

protecting the coast by working with nature.

41
Q

What is

A

a type of mass movement involving the slow downslope movement of soil under the influence of gravity.

42
Q

What is

A

the washing or blowing away of topsoil so that the fertility of the remaining soil is greatly reduced.

43
Q

What is

A

material deposited by the sea that grows across a bay or estuary.

44
Q

What is

A

a detached column of rock located just off-shore and usually caused by the collapse of an arch.