VOLCANOES AND TYPES OF MAGMA

 Review the information found at the following simulator: http://www.alaskamuseum.org/education/volcano

Read through the information available and play with the simulator. Based on the information provided, fill in the following table. Also, find a picture of each type of volcano and paste that into the chart. Include the location of each volcano that you find.

Download Answers

As the silica content in the magma rises, what happens to the:

  • pressure? ………………..
  • temperature? ………………..
  • viscosity? ………………..
  • explosive nature of the volcano? ………………..
  • Conversely, as the silica content in the magma decreases, what happens to the
  • pressure? ………………..
  • temperature? ………………..
  • viscosity? ………………..
  • explosive nature of the volcano? ………………..

WHY is silica content the most important factor in magma viscosity? What is it about silica that will increase a magma’s viscosity?

……………………………………………………………………………………………………………………………………………………….

Download answers

Close Menu