what is the meaning of rift valley?

Answer 1

A rift valley forms when you have a crustal spreading area occuring on continental crust.
Generally you have a three-armed rift system, and at least one of these fails. The other two may form, from a long process of rifting, a new oceanic basin. It's part of plate tectonics and plate movement. Actions like this over time have resulted in rearrangement of the continents from Pangea and Gondwanaland, etc., to their current distribution on the earth's surface.
I'm pretty sure Olduvai Gorge, where they found some of the oldest proto-homo sapien remains, is a rift valley.

And rift valleys really aren't formed by faults. They are spreading centers.

Answer 2

Rift Valley Meaning

Answer 3

A rift valley in geology is a valley created by the formation of a rift. The Great Rift Valley, located in the Middle East and Africa, is the most famous of the world's rift valleys. Rift valleys are produced by tensional tectonic forces which occur at divergent plate boundaries. Rift valleys typically appear as a downdropped graben between a pair of faults, or vertical Earth movements. Rift valleys are often associated with and flanked by volcanoes.

The most extensive rift valley is located along the crest of the mid-ocean ridge system and is the result of seafloor spreading. Existing continental rift valleys are usually the result of a failed arm (aulacogen) of a triple junction. Examples besides the Great Rift Valley include the Mississippi embayment and the Rio Grande Rift in North America.

The largest freshwater lakes in the world are all located in rift valleys.[1] Lake Baikal in Siberia, a World Heritage Site,[2], lies in an active rift valley. Baikal is both the deepest lake in the world and, with 20% of all of the liquid freshwater on earth, has the greatest volume.[3] Lake Tanganyika, second by both measures, is in the Albertine Rift, the westernmost arm of the active Great Rift Valley of East Africa and Southwest Asia. Lake Superior in North America, the largest freshwater lake by area, lies in the ancient and dormant Midcontinent Rift.

Answer 4

A rift valley is one formed by the movement of the earth, usually along a fault zone.

Answer 5

You should believe kiddo...got it nailed!