Geology Flashcards

1
Q

What is lithology?

A

This refers to the rock characteristics, including permeability and resistance to erosion.

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

What can happen to well jointed rocks?

A

The sea can penetrate along the lines of weakness, making them more vulnerable to erosion.

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

What is a good example of a resistant rock type?

A

Granite

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

What is a good example of less resistant rock?

A

Boulder clay

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

What is differential erosion?

A

This is variation in the rates at which rocs wear away.

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

What is a concordant coastline?

A

This is where the different layers of rock lay parallel to the sea.

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

Give an example of a concordant coastline.

A

The Purbeck Coast, Dorset is home to Lulworth Cove. Limestone borders the sea.

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

What is a discordant coastline?

A

This is where the rock types are perpendicular to the sea.

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

Give an example of a discordant coastline.

A

Swanage Coastline, Dorset. Swanage Bay is made of sand and clay and so erodes more easily.

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

What type of dip do steeper cliffs tend to have?

A

They tend to have either horizontal strata or dip inland/

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

What kind of features are produced by rocks that dip seawards?

A

The features are gently sloping.

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