grs13/02/16
Marine processes
Aims: To demonstrate an understanding of the coastal processes and the landforms associated
with them
2.2.3 Marine processes
Candidates should be able to:
• Demonstrate an understanding of wave processes in eroding a coastline and re-sorting and depositing materials removed through erosion. Candidates
should understand the types of waves (constructive and destructive) and the components of waves, swash and backwash. The erosional processes of
wave action should include an understanding of corrasion, hydraulic action, corrosion and attrition.
Transport of material along a coastline should be appreciated; onshore and offshore movements together with an understanding of movement along a
coastline (longshore drift). The action of wind in shaping coastal sand dunes should also be understood.
• Describe and explain the landforms associated with these processes.
• Describe the conditions required for the development of coral reefs and mangrove swamps.
• Describe fringing and barrier reefs and atolls.
A study should be made of the following coastal landforms:
Cliffs, wave-cut platforms, caves, arches, stacks, bay and headland coastlines, beaches, spits and bars, and coastal sand dunes.
Case study required
• The opportunities presented by an area of coastline, the hazards associated with it and their management
GEOACTIVE FILES FOR COASTS
Key Questions
Suggested Pupil activities/methods
Constructive and destructive waves, including
Resources
Text
DVD
Misc
Sugg
grs13/02/16
What processes
shape the coastal
zone?
What are the
landforms that
result from
erosional
processes?
swash and backwash
Wave refraction
Erosion process: hyd action, abrasion
(corrosion) , attrition, and solution (corrosion)
Transportation processes: traction, saltation,
suspension, solution and LSD
Deposition and the reason for it
IT EX ON WAVES
Discuss formation of headlands and bays: cliff,
stacks, etc. use examples from Purbeck.
Case Study; Purbeck
12 Apostles, S Australia
12
77
78
IT EX ON EROSIONAL LANDFORMS
What are the
landforms that
result form
deposition?
Discussion of beach landforms; backshore,
foreshore, offshore.
Description of spits and bars. Interpretation of
photos and annotated sketches. Use Studland as
an example of a spit. Also mention barrier
beaches, tombolas and cuspate forelands
Case Study: Hurst Castle Spit/Spurn Head?
IT EX ON LONGSHORE DRIFT AND
DEPOSITIONAL FEATURES
PPT on dep landforms
G&N 75
Bunnett P 53
81
12
43
And Coasts
G&N 77
GinPAcc 14A,B,C,D
GinPHC 14A
GinPHC 14C
The work of the sea GeoA 8155, 13258,
19386
Key Act 2.1
Key Ass2.2
Und Geog TRP P 79
Skills Paper 21 June
10 qu 3
Und Geog skills
Worksheet
G&N 78
12
43
And Coasts
GinPAcc 14E
NewWWTeach P124
GinPHC 14G
Key Act 2.2
The work of the sea Key Ass 2.1
Skills Paper Nov 09 qu
5
Link to OS
maps,
Swanage,
Milford
Haven
Newhaven
Padstow
Link to OS
maps
Great
Yarmouth
Weymouth
grs13/02/16
How are coastal
sand dunes and
salt marshes
constructed?
Describe the process of sand dune construction,
Use diagrams. Egs Studland and ??
Describe how salt marshes develop, focus on
bio construction. Use diagrams. Studland again
G&N 80
Sand dune plants
GeoFact119
Bunnett 150
Sample qu Mark scheme
How are coral
reefs formed?
What are the
pressures on the
reef?
Describe the growth and types of reef, fringing,
barrier and atoll
Outline the issues of use, e.g. tourism Kenya,
Also west Indies
Sample qu; mark scheme
Coastal
Holderness map 1997
Management
focused for Alt to
cwk paper
82
G&N 81
Bunnett P 148
AQA 167
GeoFact 124
Salt marsh
G&N 82
GeoA 19392
GeoFact 118
Wideworld, 13
Briggs P 48
Wideworld 22,2
Types of reef
Atoll case study
Great Barrier Reef
Jim & Betty mystery