Download Plate Tectonics - NagelBeelmanScience

By: Tayloranne Kaufmann
 Developed
in the 1960s.
 Explains the cause of earthquakes, volcanoes,
oceanic trenches, mountain range formation,
and many others.
 Explains the movement of the Earth’s plates.
 Plate Tectonics means “plate structure”.
 Alfred
Wegener originated the theory of
Pangaea.
 Theory of ‘super continent’ wasn’t originally
excepted by scientists.
 Pangaea= All Earth
 Happened in the Jurassic Periods.
 Theory of continental placement being discussed
was the Contraction Theory.
 Alfred Wegener was also a meteorologist. They
both study things on Earth.
Convergent Boundaries: Plate boundary when two plates
move toward each other.
 Examples of Convergent Boundaries: Earthquakes,
volcanoes, mud/landslides, avalanches.
 Example of Convergent Boundaries and continental plates
involved in that boundary: volcanoes- Produces magma
chambers above the ocean plate.

 Divergent
Boundaries: Location were plates are
moving away from each other.
 Examples: Earthquakes, volcanoes.
 Example of Divergent Boundaries and continental
plates involved: Volcanoes: Rising current pushes
up on the bottom of the lithosphere, lifting it and
flowing beneath it. The lateral flow causes the plate
material above to be dragged along in the direction
of the flow.
Transform Boundaries: When two plates slide past one
another.
 Examples: Earthquakes
 Example of Transform Boundary and the continental plates
involved: Earthquakes- shallow because they occur within
and between plates not involved in subduction.
 Volcanic activity not normally present because the typical
magma sources of an upwelling convection current or
melting subducting plate are not present.

We live on the Juan de Fuca Plate.
 The plates that border or contain us are: Juan de Fuca,
Caribbean, and Coco's Plate.
 We in any danger? Mt.Rainier might erupt. Major slippage
along the fault is due (earthquakes).
 Problems in the distant future: The area west of the San
Andreas fault system will move north.

 Sources:
http://www.enchantedlearning.com/subjects/astronomy/planets/earth/Continents
.shtml
http://www.ucmp.berkeley.edu/geology/techist.html
http://vulcan.wr.usgs.gov/Glossary/PlateTectonics/description_plate_tectonics.h
tml
http://www.dnr.state.oh.us/geosurvey/html/geo_f03/tabid/8307/Default.aspx
http://geology.com/plate-tectonics.shtml