Question 1

Large igneous provinces (LIPs) produce

Accepted Answer

A)  large volumes of felsic extrusive rock.
B)  large volumes of volcanic tuffs and breccias.
C)  large volumes of mafic and intermediate extrusive rock.
D)  large volumes of mafic extrusive and intrusive rocks.E) All of the above
F) B) and D)

Question 2

Which of the following volcanoes is a composite volcano (stratovolcano) ?

Accepted Answer

A)  Mauna Loa,Hawaii
B)  Shiprock,New Mexico
C)  Mount Rainier,Washington
D)  Yellowstone,WyomingE) A) and B)
F) All of the above

Question 3

Where are aseismic ridges located?

Accepted Answer

A)  convergent plate boundaries
B)  transform plate boundaries
C)  divergent plate boundaries
D)  intraplate regionsE) A) and B)
F) A) and C)

Question 4

Find the correct volcano/volcanic product match.

Accepted Answer

A)  dome/basalt
B)  shield volcano/rhyolite
C)  fissure/basalt
D)  shield volcano/andesiteE) All of the above
F) C) and D)

Question 5

Which of the following lavas will flow downhill slowest?

Accepted Answer

A)  andesite
B)  basalt
C)  rhyolite
D)  Andesite,basalt,and rhyolite lavas all flow at approximately the same speed.E) A) and C)
F) A) and D)

Question 6

Roughly ______ people live in areas adjacent to active volcanoes.

Accepted Answer

A)  100,000
B)  10 million
C)  600 million
D)  2 billionE) B) and D)
F) B) and C)

Question 7

Which of the following volcanic gases emitted during the 1992 eruption of Mount Pinatubo increased the rate of ozone loss in the atmosphere?

Accepted Answer

A)  carbon dioxide
B)  chlorine
C)  sulfur dioxide
D)  water vaporE) C) and D)
F) None of the above

Question 8

Shiprock,New Mexico,is an example of a

Accepted Answer

A)  caldera.
B)  cinder cone.
C)  diatreme.
D)  lava flow.E) All of the above
F) B) and C)

Question 9

How long does it take to recycle the entire volume of the ocean through the mid-ocean ridges?

Accepted Answer

A)  10 days
B)  10 years
C)  10 million years
D)  10 billion yearsE) A) and D)
F) None of the above

Question 10

What sort of volcano was formed during the Laki eruption in Iceland in 1783?

Accepted Answer

A)  stratovolcano
B)  under-water volcano
C)  fissure
D)  shield volcanoE) A) and D)
F) C) and D)

Question 11

Most of the world's active volcanoes are located around the edge of which ocean?

Accepted Answer

A)  the Arctic Ocean
B)  the Atlantic Ocean
C)  the Indian Ocean
D)  the Pacific OceanE) None of the above
F) C) and D)

Question 12

Which of the following rocks is formed from volcanic ash?

Accepted Answer

A)  aa
B)  breccia
C)  pahoehoe
D)  tuffE) C) and D)
F) All of the above

Question 13

How can volcanic eruptions endanger commercial air traffic?

Accepted Answer

A)  Airplanes can get struck by large volcanic bombs.
B)  Volcanic ash lofted into the air can damage engines.
C)  Large plumes of volcanic gas can cause an airplane to lose lift.
D)  Clouds of volcanic ash can reduce visibility.E) None of the above
F) A) and D)

Question 14

Which of the following volcanic deposits is most likely to form from a mafic lava?

Accepted Answer

A)  flood basalt
B)  pahoehoe
C)  shield volcano
D)  all of the aboveE) C) and D)
F) B) and C)

Question 15

Which of the following states has the most active volcanoes?

Accepted Answer

A)  Alaska
B)  Florida
C)  New York
D)  TexasE) A) and B)
F) A) and D)

Question 16

Approximately how many active volcanoes are there on Earth?

Accepted Answer

A)  50
B)  500
C)  5000
D)  50,000E) A) and C)
F) A) and D)

Question 17

An eruption of lava that pours out of vertical cracks along the flank of a volcano is referred to as a

Accepted Answer

A)  central eruption.
B)  phreatic eruption.
C)  lateral eruption.
D)  fissure eruption.E) B) and C)
F) C) and D)

Question 18

Approximately how much basaltic lava is erupted each year at mid-ocean ridges?

Accepted Answer

A)  3 cubic kilometers
B)  300 cubic kilometers
C)  30 cubic kilometers
D)  3000 cubic kilometersE) A) and B)
F) B) and D)

Question 19

So called Large Igneous Provinces are thought be the result of ________ volcanism?

Accepted Answer

A)  divergent boundary
B)  convergent boundary
C)  transform boundary
D)  intra-plate superplumeE) A) and B)
F) None of the above

Question 20

Kimperlite pipes contain material that may have come from mantle as deep as

Accepted Answer

A)  100 km.
B)  200 km.
C)  1000 km.
D)  3000 km.E) B) and D)
F) A) and B)

Exam 12: Volcanoes

Kimperlite pipes contain material that may have come from mantle as deep as

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Shiprock,New Mexico,is an example of a

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Which of the following volcanoes is a composite volcano (stratovolcano) ?

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Approximately how much basaltic lava is erupted each year at mid-ocean ridges?

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Large igneous provinces (LIPs) produce

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How long does it take to recycle the entire volume of the ocean through the mid-ocean ridges?

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Which of the following volcanic deposits is most likely to form from a mafic lava?

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So called Large Igneous Provinces are thought be the result of ________ volcanism?

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Which of the following states has the most active volcanoes?

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Most of the world's active volcanoes are located around the edge of which ocean?

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Find the correct volcano/volcanic product match.

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Which of the following volcanic gases emitted during the 1992 eruption of Mount Pinatubo increased the rate of ozone loss in the atmosphere?

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Which of the following rocks is formed from volcanic ash?

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How can volcanic eruptions endanger commercial air traffic?

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An eruption of lava that pours out of vertical cracks along the flank of a volcano is referred to as a

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What sort of volcano was formed during the Laki eruption in Iceland in 1783?

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Approximately how many active volcanoes are there on Earth?

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Where are aseismic ridges located?

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Which of the following lavas will flow downhill slowest?

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Roughly ______ people live in areas adjacent to active volcanoes.

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