Earthguide Online Classroom

Plate tectonics

Key process at plate margins #1:
Seafloor spreading at midocean ridges

Major rock patterns left behind by seafloor spreading

Key process at plate margins #2: Subduction into trenches

Unusual case of "midplate" volcanism at a hotspot - Hawaiian-Emperor Seamounts

Last edited: January 7, 2010 - M. Yasuda.

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