The Types of Plates and their Interactions
-The ways that plates interact depend on their relative motion and
whether oceanic or continental crust is at the edge of the lithospheric plate. Plates move away from, toward, or slide past
each other. Geologists call these divergent, convergent, and transform plate boundaries.
-At a divergent plate boundary lithospheric plates move away from
each other. The mid-Atlantic Ridge, a topographically high area near the middle of the Atlantic Ocean, is an example of a
divergent plate boundary. Here is an example of the mid-Atlantic Ridge just below.
See just right in the midpoint of the Atalantic ocean lies the ridge.
-At a convergent plate boundary, lithospheric plates move toward
each other. The west margin of the South American continent, where the oceanic Nazca Plate is pushed toward and beneath the
continental portion of the South American Plate, is an example of a convergent plate boundary.
See how the plate drifts down, that's it.
-At a transform plate boundary, plates slide past each other.
The San Andreas fault in California is an example of a transform plate boundary, where the Pacific Plate slides past
the North American Plate.
See the white lines, there sitting on the San Andreas fault.