1 / 17

Section 13-1 Review

Section 13-1 Review. Page #324:1-8. #1. Describe three conditions that affect whether magma forms. Magma forms when. the temperature of the rock rises above the melting point of the minerals that compose it,. the pressure of the rock decreases faster than its temperature does,.

Download Presentation

Section 13-1 Review

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Section 13-1 Review Page #324:1-8

  2. #1 Describe three conditions that affect whether magma forms. Magma forms when . . . • the temperature of the rock rises above the melting point of the minerals that compose it, • the pressure of the rock decreases faster than its temperature does, • when it is mixed with fluids that decrease its melting point.

  3. #2 Explain how magma reaches Earth’s surface. Magma reaches Earth’s surface by rising through less dense rock in the crust.

  4. #3 Compare magma with lava. Magma is melted rock beneath Earth’s surface; lava is magma that erupts onto Earth’s surface

  5. Magma Lava

  6. #4 Describe how subduction produces magma. The denser, subducted plate releases fluids to the surrounding crust and mantle materials, thus lowering their melting points and causing magma to form.

  7. Subduction creating Magma

  8. #5 Identify three tectonic settings where volcanoes commonly occur. • subduction zones • mid-ocean ridges • hot spots

  9. Subduction Zone

  10. Mid-Ocean Ridge

  11. #6 Summarize the formation of hot spots. The hot spot lies above a column of solid, hot material from the mantle. When the mantle material spreads out at the top of the plume, its pressure drops and the rock melts. The resulting magma forms volcanoes at the hot spot.

  12. Hot Spot

  13. #7 Describe how the presence of ocean water in crustal rocks might affect formation of magma. Ocean water in ocean rock can lower the melting point of the rock and aid the formation of magma.

  14. #8 Yellowstone National Park in Wyoming is far from any plate boundary. How would you explain the volcanic activity in the park? The volcanic activity in Yellowstone National Park would be due to mantle plume that cause a hot spot within the continental crust.

  15. Yellowstone Magma Chamber

  16. Yellowstone Volcano History

  17. THE END ?!?!?!

More Related