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Week 3 Mastering flash cards
Which of the following was produced by oceanic-
oceanic convergence? - -indonesia
What geologic process is related to caldera
formation? - -volcanism
How do calderas form? - -Calderas form when
the summit of a volcano collapses.
Where is Crater Lake? - -Oregon
In addition to rock deposits, what evidence do we
have that the eruption that preceded the formation of
Crater Lake was very large? - -The eruption
was so large that the magma chamber under Crater
Lake partially emptied, causing the volcano to
become unstable and collapse.
Why does Crater Lake have an island in it? - -
The volcano is still active, and a new volcanic peak
has formed.
he Hawaiian Islands are near one end of a hot-spot
track that stretches to Alaska - -true
Volcanic activity located away from plate boundaries
is associated with - -hot spots
What type of convergent boundary associated with
orogeny - -oceanic oceanic
What geological phenomenon creates a mega
tsunami? - -land slides
What happens when a tsunami reaches the
shoreline? - -When a tsunami reaches the
shoreline, the front of the wave slows down, but the
back of the wave is still traveling fast and pushes up
against the front of the wave.
Which type of landform is particularly prone to mega-
tsunami generation? - -Large volcanic islands
are particularly prone to mega-tsunami generation.
Where do some scientists believe the next major
volcanic island mega-tsunami-generating landslide
will likely occur? - -Some scientists believe the
next major volcanic island mega-tsunami-generating
landslide will occur in the Canary Islands.
I an oceanic plate-continental plate collision,which
one dives under which? - -denser oceanic
dives under continental
What is a seismograph? - -instrument used to
record earthquake waves.
What is the underlying principle of seismograph
construction? - -A heavy weight suspended
within a moving box needs to overcome inertia,
resulting in a slight delay in the motion of the weight
after the box moves.
When will the first earthquake waves arrive at a
seismograph station? - -a short time after the
earthquake occur
What is the longest amount of time that might occur
between earthquake occurrence and arrival of the
first earthquake waves at a seismograph? - -
several minutes
Which of the following is correctly paired with the
process that produced it? - -Sierra Nevadas:
oceanic-continental convergence
