Transcript Volcanoes at plate boundaries

Volcanoes at plate
boundaries
Volcanoes(ready.gov)

A volcano is a mountain that opens
downward to a reservoir of molten rock
below the surface of the earth.
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Plate boundaries
(volcanodiscovery.com)
During the past 40 years, a new model
has emerged and revolutionized Earth
sciences like perhaps none other than
before.
 The theory of plate tectonics is now wellestablished and forms the basis of our
current understanding

geog.ucsb.edu
Distribution of active
volcanoes(geology.sdsu.edu)
Our planet is a dynamic planet
 It’s outer surface layer is broken many
tectonic plates which are in constant
motion relative to one another.

http://pubs.usgs.gov/
The types of plate boundaries(geology.com)
1.) Divergent boundary
-Divergent plate boundaries are locations where plates
are moving away from one another.
2.) Convergent boundary
- When continental and oceanic plates collide the thinner
and more dense oceanic plate is overridden by the thicker and
less dense continental plate.
3.) Transform boundary
- Transform faults can be distinguished from the typical
strike-slip faults because the sense of movement is in the
opposite direction.
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References

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https://www.ready.gov/volcanoes
https://www.volcanodiscovery.com/geology/plate-tectonics.html
 http://www.geology.sdsu.edu/how_volcanoes
_work/Volcano_tectonic.html
 http://geology.com/nsta/divergent-plateboundaries.shtml
 http://geology.com/nsta/convergent-plateboundaries.shtml
Images
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http://www.geog.ucsb.edu/~dylan/mtpe/geosphere/topics/pt/plate_tectonics.
html
http://pubs.usgs.gov/gip/volc/fig34.html
http://adjr06.tripod.com/id8.html
http://dreamlandia.com/v/volcano.html