How Are Volcanoes Related to Plate Tectonics?
ES0901  Aleutian Islands

Here is a relief map of another part of Earth, the Aleutian Islands of Alaska. Active volcanoes exist throughout this line of islands, and a deep linear trench runs along the chain. Try to visualize the subsurface geology indicated by features on the surface.

9. Sketch a cross section showing the subsurface geology you would expect to see along line A-B.

 

 
   

10. What type of eruptions would you expect the volcanoes to have? Cite evidence for your answer.

 
   

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