Geology Final Quiz 6 – Flashcards
Unlock all answers in this set
Unlock answersquestion
This volcano is the smallest and composed primarily of cinders.
answer
Scoria
question
This volcano is the largest, broad and low, and is composed of basaltic lava flows.
answer
Shield
question
This volcano contains interlayered lava flow, pyroclastic deposits, and volcanic mudflows, and is the most dangerous.
answer
Composite
question
Comparing these two photographs, which eruption has lower viscosity magma?
answer
The fluid cascade of lava on the left
question
What type of eruption is shown in this photograph?
answer
Pyroclastic column
question
What type of eruption is show in this photograph?
answer
Pyroclastic flow
question
Hazards associated with basaltic lava flows and eruptions are:
answer
All of these (burial of roads and neighborhoods by lava flows, house fires, and floods from catastrophic melting of ice)
question
Which of the following activities is NOT used to monitor volcanoes?
answer
All of these are used to monitor volcanoes (measuring seismic activity with seismic instruments, measuring sulfur dioxide gas emissions, measuring changes in heat flow from satellites, and measuring tilting on the flanks of a volcano)
question
When basaltic lava flows reach the ocean or erupt beneath the ocean, they:
answer
Can add new land and form pillow basalts
question
What is the interpreted origin for magma that forms flood basalts?
answer
A rising mantle plume
question
What type of volcanic feature is shown in this photograph?
answer
Pahoehoe lava flow
