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CSUF Geology 101|64 Exam 2 Quiz Questions With Correct Answers

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  • Course
  • CSUF Geology 101
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  • CSUF Geology 101

A _______ volcano has steep flanks, symmetrical cone shapes, distinct craters, and a silica-rich magma that results in an explosive eruption style. a. Cinder cone b. Caldera c. Stratovolcano d. Flood basalt - ️️C A __________ is a volcanic hazard arising from a collapsing eruption column t...

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  • November 24, 2024
  • 15
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • CSUF Geology 101
  • CSUF Geology 101
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CSUF Geology 101|64 Exam 2 Quiz
Questions
A _______ volcano has steep flanks, symmetrical cone shapes,
distinct craters, and a silica-rich magma that results in an
explosive eruption style.
a. Cinder cone
b. Caldera
c. Stratovolcano

d. Flood basalt - ✔ ✔ C

A __________ is a volcanic hazard arising from a collapsing
eruption column that runs downhill at high speeds (>100
mph). These are associated with explosive eruptions and a
mix of lava, lapilli, pumice, ash, and hot gases.
a. cinder
b. lahar and ash flow
c. pyroclastic flow

d. volatile and gas cloud - ✔ ✔ C

A caldera is a _____________.
a. volcanic formation that only occurs at hot spots
b. synonym for crater
c. large, steep-walled depression caused by the sudden
splitting open of a rift zone

, d. large, steep-walled depression caused by the collapse of a
magma chamber - ✔ ✔ D

An increase of one on the Richter scale is equivalent to an
increase of _____ in energy released.
a. 100x
b. 23x
c. 10x
d. 3.2x

e. 32x - ✔ ✔ E

Hot spots cause - ✔ ✔ weird volcanic activity

How are volcanic eruptions predicted?
a. Uplift and tilt of the ground surface is monitored
b. Mean recurrence interval is calculated
c. Earthquakes are monitored

d. Gases are monitored - ✔ ✔ ACD

Human hazards at divergent plate boundaries - ✔ ✔ Land
slides, structural damage. Far greater hazards to humans due
to volcanism.

Human hazards at submarine divergent plate boundaries - ✔
✔ Not really anything

MRI = - ✔ ✔ 1/Average number of earthquakes

Particle sizes that give soil texture are:

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