Rift valley

More generally the valley is likely to be filled with sedimentary deposits derived from the rift flanks and the surrounding areas.

The most extensive rift valley is located along the crest of the mid-ocean ridge system and is the result of sea floor spreading.

Both types of fault-caused extension commonly occur on a small scale, producing such features as sag ponds or landslides.

[2] Lake Baikal in Siberia, a World Heritage Site,[3] lies in an active rift valley.

The 4,000 km long Valles Marineris on Mars is believed by planetary geologists to be a large rift system.

[7][8] Some features of Venus, most notably, the 4,000 km Devana Chasma[9] and a part of the western Eistla, and possibly also Alta and Bell Regio have been interpreted by some planetary geologists as rift valleys.

[13] The Uranus system also has prominent examples, with large 'chasma' believed to be giant rift valley systems, most notably the 1492 km long Messina Chasma on Titania, 622 km Kachina Chasmata on Ariel, Verona Rupes on Miranda,[14] and Mommur Chasma on Oberon.