Download Plate Tectonics Tristan McMulen

By: Tristan McMullen
Pangaea also referred to as the “Super Continent”. It was when all
the continents were connected . This continents name was coined in
scientific discussion of Alfred Wegner’s theory of continental drift.
Now it is believed that plate tectonics caused Pangaea.
The theory was not first accepted by other scientist. PangaeaA hypothetical supercontinent that included all the landmasses of the
earth before the Triassic Period. Pangaea broke apart during the
Triassic and Jurassic Periods .
The theory of Pangaea was made by Alfred Wergner in
the 19th century. Before Pangaea was brought up the
theory of contraction was being discussed.

Continental drift is based on Alfred Weregner’s
theory. The theory is that the lateral movement
of continents resulting from the motion of crustal
plates. However Alfred Weregner wasn’t the first
to create this theory. The theory was just
perfected by him. Wegner was also an
accomplished astronomer. He had a phd in
astronomy actually. This gave him a vast
understanding of other types of science which
help him understand geology better to come up
with his theories. Roberto Montavani and Willam
Henry Pickering both expanded on Wegner’s
theory on continental drift.
 Divergent
Boundary- A theory that explains
geological phenomena such as volcanism,
continental drift, and mountain building in
the earth's lithosphers plates. Multiple
hazards come out of divergent boundaries
such as earthquakes, volcanoes, mudslides,
landslides, and mountains in shape and size.
An example of this is the San Andreas Fault.

 Divergent
boundary- Plates that are pulling
apart that cause trenches, shield volcanoes,
and earthquakes. The mid-Atlantic ridge is
an example of a divergent boundary.
A transform boundary is a fault that runs along a
boundary of a tectonic plate. Volcanoes,
earthquakes, landslides, and avalanches are all
hazards that are caused by transform boundaries.
An example of a transform boundary that you may
be familiar with is the San Andreas Fault.
SAN ANDREAS FAULT
 We
live on the North American plate. The
Caribbean plate, The Juan De Fuca plate,
and the Cocos plate border the United
States. We are in danger of earthquakes from
the San Andreas fault and other fault lines
going across the United States but, its
inevitable whether it will durastically affect
us. I predict that there is going to be a big
landslide however that is in the very distant
future. There is only one state in the United
States that is not on the North American
plate and that is California.
 http://www.enchantedlearning.com/subject
s/astronomy/planets/earth/Continents.shtml
http://www.enchantedlearning.com/subjects/astronomy/pla
nets/earth/Continents.shtml
http://scign.jpl.nasa.gov/learn/plate2.htm
http://www.google.com/imghp?hl=en&tab=
wi
http://geology.com/plate-tectonics.shtml