Classifying Coasts

Question 1

What is geology

Answer 1

All the characteristics of land, including lithology (rock type) and structure (arrangement of rock units)

Question 2

5 ways geology classifies coasts

Answer 2

Rocky, sandy, estuarine, concordant, discordant

Question 3

2 ways sea level change can be used to classify coasts

Answer 3

Emergent or submergent

Question 4

Ways sea level changes occur

Answer 4

1. Tectonic processes can lift sections of land up causing local sea fall, or lead sections of land to subside, causing local sea rise
2. Climate change: physical and human causes. Physical causes occur across a 100,000 year cycle

Question 5

How do energy inputs classify coasts

Answer 5

Receive energy input from waves, tides, currents, rivers, atmospheric processes, gravity and tectonics. Classifies coasts as high energy and low energy

Question 6

How do sediment inputs classify coasts

Answer 6

Coasts receive inputs from waves and wind, varying with weather, tides, currents, mass movement and tectonic processes, sediment added to coastline through deposition and removed from erosion

Question 7

What is an eroding coastline

Answer 7

Where erosion is greater than deposition

Question 8

What is an outbuilding coastline

Answer 8

Where deposition is greater than erosion in a

Question 9

How are coasts classified as advancing/retreating

Answer 9

Due to long term processes such as emergent or submergent, and short term processes such as outbuilding and eroding