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Mar, 2003
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Mar 8, 2006
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Volcanoes and Plate Tectonics
In your study of plate tectonics so far, you learned that mountain ranges and plateaus form slowly at converging plate boundaries where continental crust is folded up as it pushes against oceanic crust (Andes) or against other continental crust (Himalayas). Mountain ranges continue to stay higher than the surrounding continent as erosion removes weight and the mountain roots rise higher in the mantle (Appalachians). This is one of the ways that the internal forces of our planet build up the surface.Volcanoes are a more obvious and dramatic result of Earth's internal processes. Using Volcano World's list of volcano websites , take notes on information that will help you answer the following questions. You may also use the USGS site "Volcano Types", "Understanding Plate Motion" and its map of tectonic plates or another map of plate boundaries
1. Describe the formation of the main types of volcanoes:
1.1 Composite (strato) volcanos like Mt. St. Helens:
1.2 Cinder cones like Paricutin:
1.3 Shield volcanos like Kilauea:
1.4 Rift volcanism similar to Mt Hekla:
1.5 Other:
2. Draw the formation and structure of a stratovolcano (aka composite) at an ocean to continent converging plate boundary.
3. What materials come from the different types of volcanoes? Use a Venn diagram to compare and contrast these materials.
4. How do volcanoes affect people both directly and indirectly?
5. How do volcanoes affect the atmosphere?
6. What resources come from volcanoes?
7. Describe a recent eruption in terms of its affect on people.
8. Other interesting stuff.
9. Add descriptions and diagrams to your Plate Boundary Features Chart
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