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FRACTURED GLOBE ▶
The plates fit together to form the
globe. Some plates are moving apart
at divergent boundaries, but the world
never gets bigger because the fringes
of other plates are being destroyed
at convergent boundaries. The
relative movement of the Pacific,
Cocos, and Caribbean plates
shows how the plate boundaries
are formed.

3


Transform boundaries

These form

where two plates are sliding past
each other. This causes frequent
earthquakes along the fault line,
but few volcanoes.

Plates grind and
snap, causing

Earthquakes


Land features
displaced by plate
movement

Plate boundary
indicated by
fault line

Pacific plate slides
along transform
boundary of San
Andreas Fault

Plates pull apart at
East Pacific Rise, a
divergent boundary

Cocos plate pushes
beneath Caribbean plate
at convergent boundary

North American
plate

South
American plate

Pacific plate

Nazca plate

Cocos plate

Caribbean plate

156_157_Tectonics.indd 157 03/01/19 12:10 PM

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