How is a rift valley formed?
1 )
As tectonic plates slide past each other, earthquakes are caused at the point of pressure release, often with a very shallow focus.
Tectonic processes lead to the divergence of plates. As the plates pull apart, the land collapses leading to a depression in the land.
3 )
As plates converge, one plate is forced beneath the other leading to the formation of a subduction zone. Rift valleys are formed in the subduction zone.
4 )
Molten rock is forced through a moving plate leading to the creation of rift valleys. Chains of islands are formed.
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