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25 Cards in this Set
- Front
- Back
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1. Which of the following factors help determine whether a volcanic eruption will be violent orrelatively quiet? a. amount of dissolved gas in the magma b. Temperature of the magma c. composition of the magma d. all of these e. Only a and b. |
d. all of these |
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2. The most abundant gas associated with volcanic activity is a. chlorine b. carbon dioxide c. sulfur oxide d. water vapor e. Nitrogen |
d. water vapor |
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3. Cinder cones a. have steeper slopes than shield volcanoes b. are usually less than 1000 feet high c. frequently occur in groups d. consist largely of pyroclasts e. all of these |
e. all of these |
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4. The most violent volcanic activity is associated with a. fissure eruptions b. shield volcanoes c. flood basalts d. calderas e. composite cones |
e. composite cones |
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5. The Columbia Plateau in the northwestern United States is an excellent example of a. silica- rich lava flows b. pyroclastic flow deposits c. an eroded shield volcano d. flood basalts e. all of these |
d. flood basalts |
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6. The oceanic ridge system is the major site of______a. spreading center volcanism b. formation of magma by partial melting of mantle rocks c. formation of basaltic magma d. all of these e. only spreading center volcanism and formation of magma by partial melting of mantle rocks |
d. all of these |
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7. Kilauea is an example of a a. shield volcano b. cinder cone c. composite cone d. lava dome e. volcanic neck |
a. shield volcano |
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8. Mount St. Helens is an example of a a. shield volcano b. cinder cone c. composite cone d. lava dome e. volcanic neck |
c. composite cone |
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9. A ______is built almost exclusively from ejected solid lava fragments. a. shield volcano b. cinder cone c. composite cone d. lava dome e. volcanic neck |
b. cinder cone |
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10. Paricutin is an example of a a. shield volcano b. cinder cone c. composite cone d. lava dome e. volcanic neck |
b. cinder cone |
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11. Large, dome-shaped volcanoes consisting primarily of basaltic lava flows are called ______ a. shield volcano b. cinder cone c. composite cone d. lava dome e. volcanic neck |
d. lava dome |
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12. Vesuvius and Fujiyama are examples of a_____ a. shield volcano b. cinder cone c. composite cone d. lava dome e. volcanic neck |
c. composite cone |
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13. Shiprock, New Mexico, is a_____. a. shield volcano b. cinder cone c. composite cone d. lava dome e. volcanic neck |
e. volcanic neck |
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14. Most of the active volcanoes on Earth are located in a belt known as the a. Ring of Fire b. Circum-Atlantic Belt c. Gulf Coast Zone d. Mid-Pacific Ridge e. Red Sea rift |
a. Ring of Fire |
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15. The igneous activity in the Yellowstone region can be classified as ______ volcanism. a. intraplate b. spreading center c. subduction zone d. intracrustal e. Geothermal |
b. spreading center |
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16. The volcano Surtsey, which emerged from the ocean in 1963, is associated with ______volcanism. a. intraplate b. spreading center c. subduction zone d. intercrustal e. Geothermal |
b. spreading center
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17. The Cascade Range in the western United States is associated with ______volcanism. a. intraplate b. spreading center c. subduction zone d. intercrustal e. Geothermal |
c. subduction zone |
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18. The Hawaiian Islands are associated with ______ volcanism. a. intraplate b. spreading center c. subduction zone d. intercrustal e. Geothermal |
e. Geothermal |
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19. This region exhibits extensive flood basalts. a. Yellowstone National Park b. Yosemite National Park c. Mt. Rainier d. Rocky Mountains e. Columbia Plateau |
e. Columbia Plateau |
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20. A region of extensive pyroclastic flows is______ a. the Columbia Plateau b. Yellowstone National Park c. Grand Teton National Park d. Hawaiian Islands e. Yosemite National Park |
d. Hawaiian Islands |
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21. Crater Lake was produced whena. a lava dam blocked the Snake River b. a large explosion decapitated a prominent volcano c. the summit of a volcano collapsed d. a mudflow from Mount St. Helens blocked the Toutle River e. the origin of this lake is unknown |
b. a large explosion decapitated a prominent volcano |
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22. Magma tends to rise toward Earth's surface principally because a. water is an abundant constituent of magma b. silica is abundant in magma c. magma is a fluid d. rocks become less dense when they melt e. none of these |
d. rocks become less dense when they melt |
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23. A large intrusive body of igneous rock is called a ______ a. batholith b. lithogiant c. stock d. dike e. Sill |
a. batholith |
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24. Batholiths are _____ a. intrusive b.plutonic c. phaneritic d.part of the Sierra Nevada Mts e. all of these |
e. all of these |
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25. The Sierra Nevada of California is composed primarily of this igneous structure. a. batholith b.pumice c. stock d. dike e. sill |
a. batholith |
