GEOLOGY 100- Exam 2- Iowa State
University questions and answers
rated A+
Along which tectonic boundary will chains of composite cone volcanoes be located?
Divergent boundary
Mantle plumes
Convergent boundary
Transform boundary - correct answer ✔✔Convergent Boundary
An example of a volcanic caldera that formed from the collapse of a magma chamber after large
volumes of material were erupted is ________.
Yellowstone
Kilauea
Mt. Mazama
Mt. Vesuvius - correct answer ✔✔Yellowstone
What type of lava is produced at a divergent plate boundary?
Rhyolitic
Andesitic
Basaltic - correct answer ✔✔Basaltic
,Which of the following changes are not evidence of migrating magma?
Changes in the pattern of earthquakes produced by moving magma
Increase in ground temperature
Changes in the volcanic gases released from the volcano
Magma draining from the summit of a volcanic cone - correct answer ✔✔Magma draining from
the summit of a volcanic cone
Kilauea is a volcano created by intraplate volcanism.
True
False - correct answer ✔✔True
GPS units, satellites, and lasers are some of the tools used to monitor ________ of the volcanic
flanks, which indicates magma accumulating in the magma chamber.
Inflation
Subsidence
Gas content
Seismicity - correct answer ✔✔Inflation
What kind of volcanic hazard can be triggered by the collapse of a lava dome?
Ash fall
, Lava flow
Pyroclastic flow
Lahar - correct answer ✔✔Pyroclastic Flow
What kind of viscosity would flood basalts have?
High viscosity
Low viscosity
Medium viscosity - correct answer ✔✔Low Viscosity
What kind of volcano is most closely associated with pyroclastic flows?
Caldera
Composite Cone
Shield
Cinder Cone - correct answer ✔✔Composite Cone
How is magma generated along convergent plate boundaries?
Fluids are boiled out of the subducting plate, which lower the melting point of the surrounding
mantle
Decompression melting of the mantle
Radioactive decay melts mantle material
University questions and answers
rated A+
Along which tectonic boundary will chains of composite cone volcanoes be located?
Divergent boundary
Mantle plumes
Convergent boundary
Transform boundary - correct answer ✔✔Convergent Boundary
An example of a volcanic caldera that formed from the collapse of a magma chamber after large
volumes of material were erupted is ________.
Yellowstone
Kilauea
Mt. Mazama
Mt. Vesuvius - correct answer ✔✔Yellowstone
What type of lava is produced at a divergent plate boundary?
Rhyolitic
Andesitic
Basaltic - correct answer ✔✔Basaltic
,Which of the following changes are not evidence of migrating magma?
Changes in the pattern of earthquakes produced by moving magma
Increase in ground temperature
Changes in the volcanic gases released from the volcano
Magma draining from the summit of a volcanic cone - correct answer ✔✔Magma draining from
the summit of a volcanic cone
Kilauea is a volcano created by intraplate volcanism.
True
False - correct answer ✔✔True
GPS units, satellites, and lasers are some of the tools used to monitor ________ of the volcanic
flanks, which indicates magma accumulating in the magma chamber.
Inflation
Subsidence
Gas content
Seismicity - correct answer ✔✔Inflation
What kind of volcanic hazard can be triggered by the collapse of a lava dome?
Ash fall
, Lava flow
Pyroclastic flow
Lahar - correct answer ✔✔Pyroclastic Flow
What kind of viscosity would flood basalts have?
High viscosity
Low viscosity
Medium viscosity - correct answer ✔✔Low Viscosity
What kind of volcano is most closely associated with pyroclastic flows?
Caldera
Composite Cone
Shield
Cinder Cone - correct answer ✔✔Composite Cone
How is magma generated along convergent plate boundaries?
Fluids are boiled out of the subducting plate, which lower the melting point of the surrounding
mantle
Decompression melting of the mantle
Radioactive decay melts mantle material
