Plate Margins Flashcards

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Give 2 characteristics of oceanic crust.
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  • More dense than continental crust
  • Heavier than continental crust
  • Younger than continental crust
  • Thinner than continental crust.
Give 2 characteristics of oceanic crust.
Give an example of a location where volcanoes occur at a volcanic hot spot.
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Hawaii, Yellowstone and The Deccan Traps.
Give an example of a location where volcanoes occur at a volcanic hot spot.
Some volcanoes occur in the middle of plates. What are these known as?
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Volcanic hotspots
Some volcanoes occur in the middle of plates. What are these known as?
Draw a diagram to show the main features of a constructive plate margin.
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An image of a constructive plate margin

A constructive plate margin

Draw a diagram to show the main features of a constructive plate margin.
Explain ridge push and slab pull as a cause of plate movement.
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Ridge push magma rises as the plates move apart. The magma cools to form new plate material. As it cools It becomes denser and slides down away from the ridge. This causes other plates to move away from each other.
Slab pull – The denser plate sinks back into the mantle under the influence of gravity. It pulls the rest of the plate along behind it.
Explain ridge push and slab pull as a cause of plate movement.




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