Divergent Boundary—Fast Spreading Ridge Educational

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New from IRIS Education & Public Outreach
Narrated and updated to correct shape of base of the lithosphere.
Replaces previous animation

As plates move away from each other, the lithosphere
thins. New oceanic lithosphere is created when basalt magma from the mantle is forced up into fractures in the crust. The submarine mid-ocean ridges form the longest mountain ranges in the world.

Narrated by Roger Groom, Mt. Tabor Middle School, Portland OR
Animation & graphics by Jenda Johnson, Earth Sciences Animated
Tags
plate tectonics, earthquakes, and volcanoes

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  • ryan
    Added

    coo