Geography - Coasts

HideShow resource information
  • Created by: em_1999
  • Created on: 17-12-15 11:35
Features of a constructive wave
Low frequency, low gradient, low height, long wavelength, stronger swash
1 of 12
Features of a destructive wave
High frequency, steep gradient, short wavelength, stronger backwash
2 of 12
Explain wave refraction
Waves travel towards coastline horizontally. Hit a coastal feature e.g. headland. Shallow water around feature so wave speed and height increases. Erosional energy focus on headland, waves dissipated. Waves change direction, lose energy as distribute
3 of 12
Marine processes
hydraulic action, abrasion, attrition, solution
4 of 12
Sub-aerial processes
weathering (biological, chemical, freeze thaw), mass movement (slumping, rockfall, landslides)
5 of 12
Geo formation
erosion digs out material along a joint to form steep sided inlet
6 of 12
Cave formation
erosion of inlet extends into cliff
7 of 12
Blow hole formation
erosion collapses overlying rocks - cave is exposed to sky
8 of 12
Stack formation
Erodes at right angles to coastline, arch collapses. Eventual collapse of stack forms a stump.
9 of 12
Headland formation
differentiating rocks erode at different rates, rock juts out
10 of 12
Bay formation
Different rates of rock erosion
11 of 12
Wave Cut platform formation
cliff lines retreat as breaking waves produce wave cut notch at cliff base. overlying beds collapse. Base of notch migrates inland, leaves a remnant of cliff
12 of 12

Other cards in this set

Card 2

Front

Features of a destructive wave

Back

High frequency, steep gradient, short wavelength, stronger backwash

Card 3

Front

Explain wave refraction

Back

Preview of the front of card 3

Card 4

Front

Marine processes

Back

Preview of the front of card 4

Card 5

Front

Sub-aerial processes

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Coastal environments resources »