Types
of Volcanoes
There
are volcanoes all around us Mt. Fuji, Mount St. Helens, Krakatoa, Mauna Loa and
much more. But haven’t you always wondered “is there more than one type of volcano.
I am here to explain to you the three types of volcanoes, The composite, the
shield, and the cinder-cone volcano. Volcanoes form in many different types
such as composite, shield and cinder-cone.
The
first volcano that can be formed is called the composite volcano. Some of
the grandest volcanoes are composite (Mt. Fuji, Mount St. Helens, Mt. Etna in
Italy, and much much more). These volcanoes are usually steep-sided,
symmetrical cones built of alternating layers of lava flows, volcanic ash. Most
of these volcanoes have a crater at the summit which composes of a central vent
or clustered group of vents. The lava is also varying to all the volcanoes. The
lava flowing from the composite volcano doesn’t usually make much distance due
to high viscosity it stops quicker and hardens quicker. But this is only one of
them the next one is the shield volcano.
The
next volcano is called the shield volcano. These are built up almost
entirely of fluid lava flows. From an aerial view the volcano looks like a
shield, hence the name “shield”. They are named for their low profile, which
resembles a warrior’s shield lying on the floor. Due to their very very fluid
lava, these volcanoes are ones that you do not want to be around when they
erupt. These volcanoes build up slowly due to this many eruptions happen
creating many layers. They are not very likely to explode catastrophically. The
best known shield volcanoes are the Hawaii islands, i.e. Mauna Loa, Mauna Kea.
Finally, the simplest volcano of all of them the cinder-cone.
The
final volcano is known as the simplest, but also as the most dangerous, the
cinder-cone. When they erupt the lava is blown violently into the air and
pieces rain down around the vent. Cinder-cones can grow up to 1000 FT. above
their surroundings. In plane-view these volcanoes tend to be roughly circular. Cinder-cones
are known as the most dangerous volcano due to it explodes when it erupts. The “cone”
part of the volcano can grow up to 1,200 Ft.
Volcanoes
are mysterious land forms that can be formed in three types the composite the
shield and the cinder-cone.
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