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Seafloor Spreading

Published on Nov 24, 2015

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PRESENTATION OUTLINE

Seafloor Spreading

By: Marissa, Braeden, Alexis, and Breana

Seafloor Spreading is caused by two moving plates.

Seafloor Spreading

Takes Place
At the mid-ocean ridges, produces basalt, and the rock makes up the oceanic crust.

Seafloor spreading is the repeating process of forming new igneous rock at mid-ocean ridges by injection of magma that forms new seafloor.

Seafloor Spreading occurs through volcanic activity, and then they gradually move away from the ridge.

Basaltic magma rises up the fractures and cools on the ocean floor to form new sea floor.

Rift Valley
Lowland between highlands or mountain ranges created by action of a geologic rift or fault

Largest Rift Valleys in the World

The Mid-Atlantic Ridge, and
East Pacific Ridge.