Plate Tectonics Web quest
By:
Brayden Bennell
The History of Pangaea
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Pangaea was a land mass hundreds of
million years ago.
Alfred Wegener was the person who had
the theory of Pangaea.
The theory of a super continent was
accepted . Pangaea was all the land mass
we have today crammed in to one land
mass.
In 1915 the first proposed the theory of
continental placement which states that
parts of the Earth's crust slowly drift on
top of a liquid core.
Alfred was a geophysicist which studies
rock leading up to tectonic plates
Arthur Holmes in 1929 emphasized and
restated Alfred’s findings and was
brought back in to science after the
original dismissal of the idea.
Convergent Boundaries
Facts.
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Convergent Boundaries are an
actively corroding or changing
region where two (or more)
tectonic plates or fragments move
toward one another and collide.
Earthquakes are mildly common in
these areas. Over time mountains
will form from the tectonic plates
colliding.
An example of a Convergent
boundary zone is the area along
the western coast of South America
where the oceanic Nazca Plate is
being moved beneath the
continental South American Plate.
Picture.
Divergent Boundaries
Facts.
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Divergent Plates are straight
rippled features that exist between
two tectonic plates that are moving
away from each other.
Volcanoes and earthquakes are
likely in these regions Because of
constant shifting of the tectonic
plates and will cause to make a
ridge.
The Mid-Ocean Ridge is an
underwater mountain system that
consists of many mountain ranges,
typically having a valley known as a
rift running along its back, formed
by plate tectonics.
Picture.
Transform Boundaries
Facts
• Transform boundary is a fault
which runs along the boundary of
a tectonic plate.
• Earthquakes are the most common
for transform boundaries because
of the tectonic plates pulling from
each other.
• The San Andreas fault in California
is a major transform boundary
which runs from somewhere near
the Salton Sea to the Mendocino
Triple Junction. This is an example
of a trench.
Picture.
Real world connections
Facts.
• We live on the North American Plate.
• The plates are the pacific plate and the
junction on the coast of California on
my earlier side contains the us.
• Not any time so will you be in danger
the plates move slowly and if another
tectonic plate moves in we will have
more natural disasters but we can
prepare.
• Earthquakes will become more
prevalent in California and more
mountains near Ohio area
• Landslides are going to become very
normal in the rocky mountains.
• Mudslides will happen in rained out hill
areas such as a rainforest for the rocky
mountain area.
Pictures.
Links
Links.
• http://geology.com/nsta/
• http://www.historyoftheuni
verse.com/pangaea_2.html
Picture.