Question 1

What type of eruption formed the main volcanic features in this figure?

Accepted Answer

A) fluid lava flows 
B) large pyroclastic eruptions 
C) lava fountain 
D) fissure eruptions 
E) eruptions beneath the seafloor 
A) fluid lava flows 
B) large pyroclastic eruptions 
C) lava fountain 
D) fissure eruptions 
E) eruptions beneath the seafloor

Question 2

Which site on the island is most likely to have viscous lava flows?

Accepted Answer

A) the location of Rock 1 
B) the location of Rock 2 
C) the location of Rock 3 
D) the area of the landslide blocks 
E) the area of the mudflow deposits 
A) the location of Rock 1 
B) the location of Rock 2 
C) the location of Rock 3 
D) the area of the landslide blocks 
E) the area of the mudflow deposits

Question 3

What kind of a volcano is Mount Rainier?

Accepted Answer

A) an exceptionally large volcanic dome 
B) a collapsed caldera 
C) a large and dangerous shield volcano 
D) an explosive scoria cone 
E) none of these 
A) an exceptionally large volcanic dome 
B) a collapsed caldera 
C) a large and dangerous shield volcano 
D) an explosive scoria cone 
E) none of these

Question 4

Which of the numbered features is a lahar?

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) 5 
A) 1 
B) 2 
C) 3 
D) 4 
E) 5

Question 5

What kind of volcano is in this figure?

Accepted Answer

A) scoria cone 
B) large shield volcano 
C) small shield volcano 
D) composite volcano 
E) caldera 
A) scoria cone 
B) large shield volcano 
C) small shield volcano 
D) composite volcano 
E) caldera

Question 6

The most damaging type of eruption that occurred at Mount Pelée,Martinique was:

Accepted Answer

A) A huge landslide caused a lateral blast that knocked down trees and buildings. 
B) A fast-moving viscous lava flow flowed through the middle of St.Pierre. 
C) The volcano was so heavy that it caused part of the island to collapse. 
D) One or more pyroclastic flows hit the city of St.Pierre. 
E) None of these. 
A) A huge landslide caused a lateral blast that knocked down trees and buildings. 
B) A fast-moving viscous lava flow flowed through the middle of St.Pierre. 
C) The volcano was so heavy that it caused part of the island to collapse. 
D) One or more pyroclastic flows hit the city of St.Pierre. 
E) None of these.

Question 7

This igneous rock contains flattened pieces of pumice and small crystals of quartz and feldspar.What type of rock is it?

Accepted Answer

A) basalt 
B) rhyolite or obsidian 
C) welded tuff 
D) volcanic breccia 
A) basalt 
B) rhyolite or obsidian 
C) welded tuff 
D) volcanic breccia

Question 8

What is a common hazard of this type of volcano?

Accepted Answer

A) burning,building collapse,and suffocation from an eruption column and pyroclastic flows 
B) volcanic mudflows and landslides 
C) relatively small pyroclastic eruptions caused by localized explosions or collapse 
D) all of these 
A) burning,building collapse,and suffocation from an eruption column and pyroclastic flows 
B) volcanic mudflows and landslides 
C) relatively small pyroclastic eruptions caused by localized explosions or collapse 
D) all of these

Question 9

Which site on the island contains the most evidence for a hot and thick pyroclastic flow?

Accepted Answer

A) the location of Rock 1 
B) the location of Rock 2 
C) the location of Rock 3 
D) the area of the landslide blocks 
E) the area of the mudflow deposits 
A) the location of Rock 1 
B) the location of Rock 2 
C) the location of Rock 3 
D) the area of the landslide blocks 
E) the area of the mudflow deposits

Question 10

The classic volcano shape is displayed by:

Accepted Answer

A) a composite volcano 
B) a caldera 
C) a fissure eruption 
D) pillow basalts 
A) a composite volcano 
B) a caldera 
C) a fissure eruption 
D) pillow basalts

Question 11

Which of the following volcanoes is generally the largest?

Accepted Answer

A) scoria cone 
B) dome 
C) composite volcano 
D) shield volcano 
A) scoria cone 
B) dome 
C) composite volcano 
D) shield volcano

Question 12

Which of the following is common in lava flows associated with scoria cones?

Accepted Answer

A) Some scoria cones are not accompanied by a lava flow and vice versa. 
B) Some lava flows squeeze out near the base of the scoria cone. 
C) The lava flow forms before the scoria cone when gas contents are highest. 
D) The lava flows are mostly intermediate to felsic. 
E) a and b only 
A) Some scoria cones are not accompanied by a lava flow and vice versa. 
B) Some lava flows squeeze out near the base of the scoria cone. 
C) The lava flow forms before the scoria cone when gas contents are highest. 
D) The lava flows are mostly intermediate to felsic. 
E) a and b only

Question 13

What do we know about the main volcanoes in the Cascade Range?

Accepted Answer

A) Only Mount St.Helens has erupted in the last 4,000 years. 
B) Only Mount St.Helens and Mount Shasta in California have erupted in the last 4,000 years. 
C) Only Mount St.Helens and Crater Lake have erupted in the last 4,000 years. 
D) Nearly all of the large Cascade volcanoes have erupted in the last 4,000 years. 
A) Only Mount St.Helens has erupted in the last 4,000 years. 
B) Only Mount St.Helens and Mount Shasta in California have erupted in the last 4,000 years. 
C) Only Mount St.Helens and Crater Lake have erupted in the last 4,000 years. 
D) Nearly all of the large Cascade volcanoes have erupted in the last 4,000 years.

Question 14

What is a main hazard of this type of volcano?

Accepted Answer

A) hot fragments thrown a short distance from the volcano 
B) burning,building collapse,and suffocation from widely distributed pyroclastic material 
C) destruction by moderately fluid lava flows that can flow far from the volcano 
D) volcanic mudflows and landslides 
E) relatively small pyroclastic eruptions caused by localized explosions or collapse 
A) hot fragments thrown a short distance from the volcano 
B) burning,building collapse,and suffocation from widely distributed pyroclastic material 
C) destruction by moderately fluid lava flows that can flow far from the volcano 
D) volcanic mudflows and landslides 
E) relatively small pyroclastic eruptions caused by localized explosions or collapse

Question 15

The main hazard that Mount Rainier poses to Tacoma and its suburbs is:

Accepted Answer

A) hot lava flows 
B) numerous small but deadly pyroclastic flows 
C) volcanic mudflows 
D) a hot,glowing lava fountain 
A) hot lava flows 
B) numerous small but deadly pyroclastic flows 
C) volcanic mudflows 
D) a hot,glowing lava fountain

Question 16

Which of the following sites near a volcano might be relatively less dangerous?

Accepted Answer

A) a site that is within the shelter provided by the volcano's central crater 
B) a site on a ridge as opposed to a site in a valley 
C) a site protected by steep slopes of the volcano 
D) a site where rocks have been weakened by hot volcanic fluids 
E) all of these 
A) a site that is within the shelter provided by the volcano's central crater 
B) a site on a ridge as opposed to a site in a valley 
C) a site protected by steep slopes of the volcano 
D) a site where rocks have been weakened by hot volcanic fluids 
E) all of these

Question 17

What type of eruption formed this flow-banded obsidian?

Accepted Answer

A) a viscous lava flow 
B) a pyroclastic column 
C) a pyroclastic flow 
D) a lava that broke apart while it flowed 
E) a lava fountain 
A) a viscous lava flow 
B) a pyroclastic column 
C) a pyroclastic flow 
D) a lava that broke apart while it flowed 
E) a lava fountain

Question 18

Which of the following factors makes a site near a volcano relatively more dangerous?

Accepted Answer

A) the nearby slopes on the volcano are gentle 
B) a site that is within a valley that drains the volcano 
C) a site that is upwind from the volcano 
D) all of these 
E) none of these 
A) the nearby slopes on the volcano are gentle 
B) a site that is within a valley that drains the volcano 
C) a site that is upwind from the volcano 
D) all of these 
E) none of these

Question 19

What is a main hazard of this type of volcano?

Accepted Answer

A) hot fragments thrown a short distance from the volcano 
B) burning,building collapse,and suffocation from widely distributed pyroclastic material 
C) destruction by viscous lava flows that can flow far from the volcano 
D) volcanic mudflows and landslides 
E) relatively small pyroclastic eruptions caused by localized explosions or collapse 
A) hot fragments thrown a short distance from the volcano 
B) burning,building collapse,and suffocation from widely distributed pyroclastic material 
C) destruction by viscous lava flows that can flow far from the volcano 
D) volcanic mudflows and landslides 
E) relatively small pyroclastic eruptions caused by localized explosions or collapse

Question 20

Which of the following is NOT a typical match between the type of eruption and resulting rock type?

Accepted Answer

A) lava from a composite volcano-andesite 
B) eruption column-tephra 
C) pyroclastic flow-scoria 
D) volcanic-derived mudflow-breccia with angular fragments 
A) lava from a composite volcano-andesite 
B) eruption column-tephra 
C) pyroclastic flow-scoria 
D) volcanic-derived mudflow-breccia with angular fragments

What type of eruption formed the main volcanic features in this figure?

Which site on the island is most likely to have viscous lava flows?

What kind of a volcano is Mount Rainier?

Which of the numbered features is a lahar?

What kind of volcano is in this figure?

The most damaging type of eruption that occurred at Mount Pelée,Martinique was:

This igneous rock contains flattened pieces of pumice and small crystals of quartz and feldspar.What type of rock is it?

What is a common hazard of this type of volcano?

Which site on the island contains the most evidence for a hot and thick pyroclastic flow?

The classic volcano shape is displayed by:

Which of the following volcanoes is generally the largest?

Which of the following is common in lava flows associated with scoria cones?

What do we know about the main volcanoes in the Cascade Range?

What is a main hazard of this type of volcano?

The main hazard that Mount Rainier poses to Tacoma and its suburbs is:

Which of the following sites near a volcano might be relatively less dangerous?

What type of eruption formed this flow-banded obsidian?

Which of the following factors makes a site near a volcano relatively more dangerous?

What is a main hazard of this type of volcano?

Which of the following is NOT a typical match between the type of eruption and resulting rock type?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Sedimentary Environments and Rocks

Deformation and Metamorphism

Geologic Time

The Seafloor and Continental Margins

Mountains, basins, and Continents

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

Glaciers, shorelines, and Changing Sea Levels

Weathering, soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

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Exam 6: Volcanoes and Volcanic Hazards

What type of eruption formed the main volcanic features in this figure?

Which site on the island is most likely to have viscous lava flows?

What kind of a volcano is Mount Rainier?

Which of the numbered features is a lahar?

What kind of volcano is in this figure?

The most damaging type of eruption that occurred at Mount Pelée,Martinique was:

This igneous rock contains flattened pieces of pumice and small crystals of quartz and feldspar.What type of rock is it?

What is a common hazard of this type of volcano?

Which site on the island contains the most evidence for a hot and thick pyroclastic flow?

The classic volcano shape is displayed by:

Which of the following volcanoes is generally the largest?

Which of the following is common in lava flows associated with scoria cones?

What do we know about the main volcanoes in the Cascade Range?

What is a main hazard of this type of volcano?

The main hazard that Mount Rainier poses to Tacoma and its suburbs is:

Which of the following sites near a volcano might be relatively less dangerous?

What type of eruption formed this flow-banded obsidian?

Which of the following factors makes a site near a volcano relatively more dangerous?

What is a main hazard of this type of volcano?

Which of the following is NOT a typical match between the type of eruption and resulting rock type?

The Nature of Geology

Investigating Geologic Questions

Plate Tectonics

Earth Materials

Igneous Environments

Sedimentary Environments and Rocks

Deformation and Metamorphism

Geologic Time

The Seafloor and Continental Margins

Mountains, basins, and Continents

Earthquakes and Earths Interior

Climate, weather, and Their Influences on Geology

Glaciers, shorelines, and Changing Sea Levels

Weathering, soil, and Unstable Slopes

Streams and Flooding

Water Resources

Energy and Mineral Resources

Geology of the Solar System

Filters