Volcano Review Questions
1. What do you call a structure made of volcanic materials, the volcano itself?
2. Name 2 important benefits of volcanoes. Name 2 more.
3. Name one type of geologic situation that leads to volcanoes. Name another. Name another.
4. What type of magma is associated with hot spot volcanoes?
5. What type of magma is associated with subduction zone volcanoes?
6. What type of magma is associated with rift zone volcanoes?
7. Why is magma associated with sub. zone volcanoes granitic?
8. What is the most common gas that comes from volcanic eruptions?
9. Why does magma associated with sub. zone volcanoes contain so much steam?
10. What term would be used to describe a volcano that is never expected to erupt again?
11. What term would be used to describe a volcano that has not erupted in a long time but may erupt again?
12. What does the word dormant mean?
13. What term would be used to describe a volcano that is erupting or could erupt at any time?
14. Any solid that comes out of a volcano would be called what?
15. When pyroclastics form a layer, that material would then be called what?
16. What do you call the smallest sized pyroclastic particles?
17. What effect can dust from a volcano in Indonesia have on us?
18. What do you call pyroclastic particles the size of sand grains?
19. What is the most damaging aspect of volcanic ash fallout?
20. What do you call pea to walnut sized pyroclastic particles?
21. What do you call truck sized pyroclastic particles?
22. What is one type of igneous rock that cinders are likely to be made of? What’s another?
23. A fast moving, hot cloud of volcanic gases, rocks, and ash is called what?
24. What term describes how easily a liquid flows?
25. Fast moving, low viscosity lava is called what?
26. Slow moving, high viscosity lava is called what?
27. Aa lava is aka what, based on the sound it makes while moving?
28. What kind of lava often looks like coiled rope when cooled?
29. What aspect of volcanic eruptions kills most people?
30. Name one place where pyroclastic flows killed a lot of people. Name another.
31. Other than water, name a common volcanic gas.
32. What do you call a blob of lava that hardens in flight?
33. What would you call an eruption where lava just pours out of a volcanic cone?
34. What would you call an eruption where lava appears to boil?
35. What would you call an eruption so powerful that the cone is destroyed?
36. Name an example of an explosive volcanic eruption. Name another. Name another.
37. Name the following feature on the diagram of a generic volcano: flank, crater, caldera, vent, conduit, magma chamber
38. What kind of volcanic cone is characterized by having steep flanks of crumbly tephra?
39. What kind of volcanic cone is characterized by having gently sloping flanks?
40. What kind of volcanic cone is the smallest?
41. What kind of volcanic cone includes the world’s 2 tallest volcanoes?
42. What are the names of the 2 largest volcanoes?
43. Which one of them is taller?
44. What kind of volcanic cone is characterized by having layers of lava and layers of tephra?
45. Composite cones are aka what?
46. What kind of volcanic cone is most likely to be made of basalt?
47. Name a cinder cone.
48. Name a composite cone. Name another. Name another.
49. What volcano is currently thought to be the most dangerous in the US?
50. Intrusive igneous formations are aka what?
51. Plutons are generally made of what kind of rock?
52. Which of the 3 major kinds of plate boundary are plutons associated with?
53. What is the largest kind of pluton?
54. Large, odd shaped outgrowths of batholiths are called what?
55. Igneous intrusions that are formed when magma squeezes between layers of rock are called what?
56. Igneous intrusions that are formed when magma cuts across layers of rock are called what?
57. Igneous intrusions that are formed when magma inflates a sill into a mushroom shape are called what?
58. How much taller is Hawaii than Mt. Everest?
59. What is the world’s most active volcano?
60. Trapped water spews as steam through holes called what?
61. Seven percent of New Zealand’s energy is what type?
62. Name another country that gets a substantial amount of its energy from geothermal sources.
63. Mt. St. Helen killed how many people in 1980?