1.3 Historical Discord

Question 1

Role of sea level change on cork coastline

Answer 1

Discordant coastline, alternating rock

Results in elongated narrow bays

Question 2

What do more resistant rock remain as

Answer 2

Islands (detached from coastline)

Question 3

Sea level change river valleys

Answer 3

Sea level rise in river valleys (formed by erosion) leads to flooding and headland bay becomes more exaggerated after more erosion
Cork coastline exposed with long fetch, many storms bringing high levels of rain

Question 4

Role of wave refraction

Answer 4

Wave crests refract and this accelerated erosion at the headland and material deposits at bay
Coastline becomes straighter

Question 5

Role of tectonic activity

Answer 5

Push sedimentary rock up
Folding rock forms from plate collision causing weak points
Magma rises to surfaces cools forming more resistant igneous rock