Divergent Boundary—Fast Spreading Ridge Educational

Описание к видео Divergent Boundary—Fast Spreading Ridge Educational

www.iris.edu/earthquake
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 for IRIS

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