geological structure and the development of coastal landscapes

Question 1

Geological structure

Answer 1

Arrangement of rocks in three dimensions and involves 3 key elements

Question 2

3 key elements of of geological structure

Answer 2

Strata, deformation, faulting

Question 3

Strata

Answer 3

Different layers of rock in a location and how they relate to each other

Question 4

Deformation

Answer 4

Degree to which rock until have been tilted or folded by tectonic activity

Question 5

Faulting

Answer 5

Presence of fractures along which rocks have moved

Question 6

What 2 types of coast does geological structure create?

Answer 6

Concordant and discordant coastline

Question 7

Concordant coastline (dog type coastline)

Answer 7

Rock strata = parallel to coastline
Generally smooth to slightly indented (Dalmatian type)

Question 8

Discordant coastline (cold type of coastline)

Answer 8

Rock strata intersect coast on an angle, lithology varies along coast
Bays and headlands (Atlantic type)

Question 9

Cliff profiles are influenced by 2 different what

Answer 9

Resistance of rock to erosion
Dip/angle of rock strata in relation to coastline

Question 10

3 geological features influencing cliff profiles

Answer 10

Faults, joints, fissures

Question 11

Faults

Answer 11

Rocks fractures and therefore weakened either side of the fault line

Question 12

Joints

Answer 12

Occur in most rocks and are potential lines of weakness

Question 13

Fissures

Answer 13

Small cracks in rocks also represent weaknesses that erosion can exploit