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When several parallel faults occur in the ground, the formed block sinks to form a valley.This valley has a flat floor and steep edges, called a rift valley. But if the block rises it forms block mountains.
Bennett Bode
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∙ 13y agoA new ocean begins when hot mantle material begins to move upward beneath a continent. Geoscientists are still not certain about why that happens. The lithosphere of the continent bulges upward and is stretched sideways. Eventually its breaks along a long crack, called a rift. Magma rises up to feed volcanoes in the rift. As the rift widens, the ocean invades the rift. A new ocean basin has now been formed, and it gets wider as time goes on.
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∙ 16y agoRift valleys are areas of land that have sunk down compared to surrounding land. This is caused by stretching of the continent in the continental drift. When the continent is subject to tension in continental drift huge geological fault lines appear and the land within the fault lines is free to 'float' independently on the underlying molten rock. It finds a new position and settles there.
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∙ 11y agorifts can form by tension stress, of the tectonic plates
Wiki User
∙ 9y agoRifts refer to linear zones where the Earth's crust and lithosphere are being pulled apart. They are formed through divergent plate tectonics.
Wiki User
∙ 11y agoThey occur most often in the ocean I think.
Wiki User
∙ 11y agoRifting causes fissures, or cracks, in the Earth's crust.
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Why do we have rift valleys?
Rift valleys appear at divergent tectonic plate boundaries. It is thought to be a process of inner earth heat
What do rift valleys tell us about the sea floor and continent plates?
Rift valleys tell us stuff about the sea floor.
What are the valleys under the ocean called?
They are called trenches.
What kind of boundary are mid-ocean ridges and rift valleys?
A rift valley forms at a divergent boundary. When plates diverge, the crust in between them is pulled thin. This tension creates a rift valley, such as the one found between the two islands of New Zealand. Over time, the stretched crust with grow so thin that rising magma will break its surface, forming an underwater ridge.
How and where are rift valleys formed?
The lithosphere of the continent bulges upward and is stretched sideways and eventually breaks and makes long crack known as a rift
What form valleys?
It's the rock's that scrap the ground when the water flows. Then it eventually creates a rift valley
How do rift valleys form?
rift valleys form by tension stress
What is the name of the long deep valleys that are formed by the movement of Earths crust?
rift valleys
Are rift valleys made by convergent boundaries?
no rift valleys are formed on the divergent boundary.
What forms rift valleys and faul block mountains?
Rift valleys are where a continent is being pulled apart.
Why do we have rift valleys?
Rift valleys appear at divergent tectonic plate boundaries. It is thought to be a process of inner earth heat
What do rift valleys tell us about the sea floor and continent plates?
Rift valleys tell us stuff about the sea floor.
What is a large system of rift valleys and mountain ranges?
Rift-block mountain
What long deep valleys are formed by the movement of the earths crust?
rift valleys
Why do Lakes form on the floor of rift valleys?
lakes form on the floor of a rift valley
What are the valleys under the ocean called?
They are called trenches.
What lake located in Great Rift Valleys called?
no
