Plate Margins Flashcards

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Draw a diagram to show the main features of a destructive plate margin
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A cross section of a destructive plate margin

A cross section of a destructive plate margin

Draw a diagram to show the main features of a destructive plate margin
What is a rift valley?
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A long, narrow valley lying between two normal geologic faults. Rift valleys usually form where the Earth’s lithosphere has become thin through extension associated with plate-tectonic processes.

What is a rift valley?
Give 2 characteristics of continental crust.
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  • Less dense than oceanic crust
  • Thicker than oceanic crust
  • Lighter than oceanic crust
  • Forms the Earth’s continents
  • Older than oceanic crust
Give 2 characteristics of continental crust.
Give two possible reasons why tectonic plates move.
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Convection currents & Slab pull (+ ridge push).
Give two possible reasons why tectonic plates move.
Identify the type of volcano that forms on constructive plate margins
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Shield volcano

Identify the type of volcano that forms on constructive plate margins




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