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Volcano
Types
Where is
That
Volcano?
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Volcano
Volcano
Volcano
Facts Facts/Vocab Vocab
Devil’s Tower in Wyoming is an
example of this
What is an extinct
volcano that has
eroded away to
show the original
conduit that was
plugged with
magma?
Photo of Devil’s Tower in Montana, note the
size of the full-grown trees near the base!
Devil's Tower Photo #2 (Close-up photo to
show how big it really is)
A Cinder Cone volcano looks
like this.
What is a steep, cone shaped
dome?
T/F: Cinder cones rarely exceed 1000
feet in height
True. Except for a rare one in Mexico in the mid-1940’s, which was 1200
feet tall and just popped up out of nowhere, most never exceed 1000 feet
in height. Go to this link and you can see a picture of it is you scroll
down a bit: http://pubs.usgs.gov/gip/volc/types.html
Answer is under here
Stratovolcanoes are also known
as ______.
What is a Composite Volcano?
The tallest type of volcano, with a
broad, flattened dome is this type:
What is Shield?
Which shield volcano in Hawaii is the
tallest in the world?
If you go to this link, you can find the answer and see that there are a bunch of shield volcanoes in Oregon, California,
and Washington
http://vulcan.wr.usgs.gov/Glossary/ShieldVolcano/description_shield_volcano.html
Mauna Kea is the tallest shield volcano in
the world, Mauna Loa is the biggest one
Answer is under here
What type of volcano would you
most likely find along a subduction
zone?
What is a Composite Volcano?
Mount St. Helen is here.
What is Washington?
What sort of volcano is Mount Saint
Helen?
Stratovolcano/composite
Answer is under here
Krakatoa was located here.
(Country)
What is Indonesia?
Why is Krakatoa a notable volcano?
The huge explosion (blast) that was
Answer
is under
here
heard
nearly around
the world
All of these volcanoes can have
heavy metals (beyond iron) in
them, just like you do. Where
did those heavy metals come
from?
Meteors that hit the earth as
meteorites.
Where did the meteors come from?
Supernovas - which are
Answer
under
here
large starsisthat
explode.
Mount Shasta is here.
What is California?
Since Vesuvius is big, but in not on
top of a hot spot, it is most likely a
____ volcano
Composite/Stratovolcano
Answer is under here
Yellowstone, with its monstrous
caldera, is an example of this
type of volcano?
Supervolcano! It is not a shield or
composite volcano (since there is not
structure above the ground), just a giant
caldera for a hot spot.
Use the last sheet “How big are volcanic eruptions” in
your packet to decide what it should really be called!
[The major features of the caldera measure about 34
miles (55 km) by 45 miles (72 km)]
These are the three main types of
volcanoes, in order by their normal
average sizes.
What is cinder cone, composite, and
shield?
True or False?
Volcanic ash is dense, but fairly light
in weight, and easily blown about,
like in the movie Dante’s Peak.
What is False?
Volcanic ash is dense and fairly
heavy in weight.
How would the volcanic ash interfere with
plane engines, our lungs, and car engines?
Ash blocks
air (oxygen)
fromhere
getting in
Answer
is under
Which of the following is not true in
all volcanoes?
All volcanoes have magma
All volcanoes can have ash
All volcanoes have gasses
All volcanoes have side vents
What is “All volcanoes have side
vents?”
Make sure that the other 3 answers are in the
middle of your Venn Diagram!
True or false?
If carbon dioxide gas is being
emitted from a volcano through
vents, there is a volcanic eruption
coming.
What is False?
Not always an eruption coming if
gas is coming out.
Yellowstone vents gases all the time. Still the
release of gases may be the start of something!
What is a more likely indication of a volcano
getting ready to blow up?
More
seismic is
activity
(earthquakes)
Answer
under
here
What are the five ways a volcano
can kill you?
What is Pyroclastic Flow, Tsunami,
Landslide, Lahar, and Gas.
And then you might just ________ to
death.
Starve
Answer is under here
These 5 U.S. states have
volcanoes in them
Answers vary – use your
“Volcanoes in the US”
worksheet!
Which volcanoes go “pop,” and
which do not?
Shield = more “gentle”
Cinder = small “pop”
Stratovolcano = big “pop”
This is another name for a
stratovolcano
Composite Volcano
This is the substance that makes
volcanoes from continental crust
tend to be more explosive than
those from oceanic crust:
What is silica
What is a hole in a volcanic area
from which hot smoke and gases
escape.
What is a Fumerole?
Pyroclastic Flow is made of
____,____, and ____.
What is flaming hot volcanic gas,
ash, and rock?
Define Pyro and define clast
Pyro: Fire
Clast: fragment
What is the relationship between a
magma chamber, a conduit, and a
vent?
Also, define each term.
What is the system in which magma
comes out of a volcano through vents?
Definitions:
Magma chamber: The chamber in the volcano that holds the magma
Conduit: The channel that the magma travels to the vent in.
Vent: The holes in the sides or top of the volcano that release magma and
gasses.
T/F Silica increases both the
density and the viscosity of magma
False – it increases the viscosity
(stickiness/thickness) of magma,
but not the density (how much
mass in in a certain volume of
magma)
Explain the differences between
casts and molds
CASTS have the 3-dimensional
shape of the original object.
MOLDS have the outline of the
original object and can be filled
with material to make a copy of
the original object