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Plate tectonics and associated hazards

Topic Key Theme Resources
Plate Tectonics and

Associated Hazards

   
Plate movement    
Earth structure, plate tectonics theory Convection currents and sea-floor spreading. Evidence: continental drift and palaeomagnetism. Philip Allan: 2 – 5

Oxford: 7 – 11

Plate margins Destructive, constructive and conservative.

 

Philip Allan: 5 – 10

Oxford: 12 – 19

Processes Seismicity and vulcanicity.

 

 

Oxford: 20 – 21
Associated landforms Young fold mountains, rift valleys, ocean ridges, deep sea trenches and island arcs. Philip Allan: 5 – 11

Oxford: 12 – 23

Hot spots Associated with plumes of magma and their relationship to plate movement. Philip Allan: 10 – 11

Oxford: 22 – 23

Vulcanicity    
Frequency of volcanic

activity

Variations in the type and frequency of volcanic activity in relation to types of plate margin and types of lava. Philip Allan: 11 -12

Oxford: 24

Forms of intrusive activity Dykes, sills & batholiths.

 

Philip Allan: 12 – 14

Oxford: 25

 

Geofacts

Minor forms of extrusive activity Geysers, hot springs and boiling mud. Philip Allan: 15

Oxford: 32 – 35

 

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Major forms of extrusive activity Types of volcanoes.

 

 

Philip Allan: 14 – 17

Oxford: 26 – 27

 

Two case studies of recent (within the last 30 years) volcanic events In each case the, following should be examined:

• the nature of the volcanic hazard

• the impact of the event

• management of the hazard and responses to the event.

Philip Allan: 18 – 23

Oxford: 28 – 31

 

 

 

 

 

 

Seismicity    
The causes and main characteristics of earthquakes focus and epicentre; seismic waves and earthquake measurement.

 

Philip Allan: 24 – 27

Oxford: 36 – 39

Tsunamis characteristics and causes

 

Philip Allan: 27 – 29

Oxford: 46 – 51

 

Two case studies of recent (within the last 30 years) seismic events In each case, the

following should be examined:

• the nature of the seismic hazard;

• the impact of the event;

• management of the hazard and responses to the event.

Philip Allan: 30 – 34

Oxford: 40 – 45

 

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