Coast Flashcards

1
Q

Coasts refer to an area that is affected by biological processes in additional to tectonic activity

True or false?

A

True

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

Coastlines have not come into equilibrium with modern sea levels

True or False?

A

True

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

Coastal cells in Southern California are smaller due to the location on an active, leading edge of a continent

True or false?

A

True

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

Seawalls protect property snd decrease beach erosion

True or false?

A

False

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

Fringing reefs are separated from land by a lagoon

A

False

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

What is the name given to long-term change in sea level?

A

Eustatic change

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

What is the name for a coast in which the dominant processes are those that remove coastal materials?

A

Erosional Coast

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

How much of the United States coastline is considered to be depositional?

A

30%

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

Which coastline is depositional coast?

A

Florida

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

Which feature marks the shoreward limit of marine erosion on a rocky coast?

A

Sea cliffs

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

What is the rate if shore erosion dependent on?

A

Local range of tides

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

What is a fjord

A

Deep narrow bay modified by glaciers

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

What type of beach is likely to exist on coastline covered with sea caves?

A

erosional beach

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

An erosion coast that has little tidal variation

A

Can erode quickly because wave action is concentrated near one level for long times

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

What is true of backshore?

A

It can include dunes and grasses

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

What is usually the highest point on a beach?

A

Berm crest

17
Q

What is a coastal cell?

A

A section of coastline that has balanced input and output of sand

18
Q

What is responsible for increasing beaches’ slope

19
Q

What is the eventual fate of an erosional beach?

A

They become a depositional beach

20
Q

What creates a moraine?

21
Q

What type of depositional feature migrates slowly landward as sea levels rise?

A

Barrier island

22
Q

What is a tombolo?

A

A bridge of sediment that connects to a sea island to a mainland

23
Q

Barrier islands are?

A

Parallel but separate from land

24
Q

Where do most of the atolls on earth exist?

A

Pacific Ocean

25
Which of the following are formed when longshore currents slows?
Sand spits
26
How have parts of Florida's coast been extended
Mangroves
27
What type of estuary is characterized by rapid river flow and low tide range?
Salt wedge estuary
28
Where does most of the sediment on the Pacific coast originate from?
Granite rock