Plate Margins

HideShow resource information

Conservative Plate Margin

  • Earthquakes only; can be violent 
  • Landform; Fautline
  • Pacific and North American Plates
  • one plate moves slowly and slightly into the other
  • earthquakes can occur if the two plates stick
  • sufficient pressure builds up
  • one plate jerks, sending shockwaves to the surface
  • these shockwaves cause earthquakes
1 of 5

Constructive Plate Margin

  • Gentle volcanic eruptions and earthquakes
  • Landform- Rift Valley, Thingvellir / Shield Volcano / Mid Ocean Ridge 
  • Iceland- N.American and Eurasian Plates
  • two plates move away from each other 
  • molten rock or magma rises to fill the gap
  • forms new oceanic crust 
  • newly formed magma rises to the surface to form volcanoes and a long chain of fold mountains
2 of 5

Collision Plate Margin

  • Earthquakes only
  • Landform- Fold Mountains
  • Himalyan Fold Mountains- Indo-Australian Plate and Eurasian Plate
  • two plates consisting of continental crust move together
  • rocks between them are forced upwards forming fold mountains 
  • this movement may also lead to earthquakes 
3 of 5

Destructive Plate Margin

Oceanic & Continental

  • violent volcanic eruptions
  • violent earthquakes
  • Landforms-Volcano, Trench, Subduction Zone
  • Nazca and South American Plate
  • Andes 
  • Subduction Zone- Peru/Chile Trench
  • Plates consisting of oceanic crust move towards plates of continental crust
  • Nazca plate moves towards the South American
  • Nazca plate is forced downwards to form a subduction zone
  • increase in pressure triggers earthquakes
4 of 5

Destructive Plate Margin

Oceanic & Oceanic

  • Violent volcanic eruptions
  • Violent earthquakes
  • Landforms- Volcano / Island Arc / Trench / Subduction Zone
  • Aleutian Islands
  • N.American and Pacific Plates
5 of 5


No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Plate tectonics resources »