Other Definitions
rift valley (dict)
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Rift ValleyIn geology, a rift valley is a valley created by the formation of a rift. The Great Rift Valley is the most famous of the world's rift valleys. However, rift valleys appear as a result of a fault, or vertical Earth movements. A rift valley is caused by seafloor spreading. There is a mountain chain that gets ripped apart and causes a seperation, forming a rift valley in between.
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