3 types of Plate Boundaries By Mari Bush

Divergent Plate Motion -When two plates separate it create new oceanic crust, a divergent plate boundary forms.

  • Stress-Tension
  • Land-forms-The Land-forms create volcanoes and rift valleys
  • Example-The great Rift Valley in Africa, Mt.Nyiragogo a
  • Real World Event-Divergent Boundary-Mid-Atlantic Ridge above sea level at Iceland.\
  • These plates spread at a rate of approximately 2.5 centimeters per year.
  • Date-February 1, 1904
A example of a divergent boundary
March 2010 Eyjafjallajökull erupts

Convergent Boundary

-When two plates collide into each other

Stress-Compression

Convergent land-forms-Convergent boundaries form strong earthquakes, as well as volcanic mountains or islands, when the sinking oceanic plate melts.

A example of A Convergent Boundary, This is how Mt. Everest came to be.
The April 2015 Nepal earthquake (also known as the Gorkha earthquake) It occured at 11.56 Nepal Standard Time on 25 April, with a magnitude of 7.8Mw or 8.1Ms
10 km A 2.8 earthquake hits near Dyersburg, TN

Transform Boundary-When 2 plates slides past each other

Stress-Shear

Land-forms-When 2 plates slides past each other, this starts really strong earthquakes

Real-World Event- California's San Andreas fault is a transform boundary.

The San Andreas Fault is a continental transform fault that extends roughly 800 miles through California. It forms the tectonic boundary between the Pacific Plate and the North American Plate, and its motion is right-lateral strike-slip.

The largest historical earthquakes that occurred along the San Andreas fault were those in 1857 and 1906. The earthquake of January 9, 1857, in southern California apparently was about the same magnitude as the San Francisco earthquake of 1906.

Here's a example of A Transform Boundary

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