1 a gap between cloud masses; "the sun shone through a rift in the clouds"
2 a narrow fissure in rock
3 a personal or social separation (as between opposing factions); "they hoped to avoid a break in relations" [syn: rupture, breach, break, severance, falling out]
- Rhymes: -ɪft
Etymology 1Of Scandinavian origin; compare Danish rift ‘chink’.
- A chasm or fissure.
- My marriage is in trouble, the fight created a rift between us
and we can't reconnect.
- The Grand Canyon is a rift in the Earth's surface, but is smaller than some of the undersea ones.
- My marriage is in trouble, the fight created a rift between us and we can't reconnect.
- To form a rift.
Etymology 2From Old Norse rypta.
- To belch.
EtymologyFrom Old Norse rypta.
In geology, a rift is a place where the Earth's crust and lithosphere are being pulled apart, an example of extensional tectonics. Typical features are a central linear downdropped fault segment, called a graben, with parallel normal faulting and rift-flank uplifts on either side forming a rift valley, where the rift remains above sea level. The axis of the rift area commonly contains volcanic rocks and active volcanism is a part of many but not all active rift systems. Rifts are distinct from Mid-ocean ridges, where new oceanic crust and lithosphere is created by seafloor spreading. In rifts, no crust or lithosphere is produced. If rifting continues, eventually a mid-ocean ridge may form, marking a divergent boundary between two tectonic plates. Failed rifts, which may be ancient or modern, are where continental rifting began, but then failed to continue to the point of break-up. Typically the transition from rifting to spreading develops as three converging rifts over a hotspot. Two of these evolve to the point of seafloor spreading, while the third ultimately fails, becoming an aulacogen.
- The East African Rift
- The Red Sea Rift
- The Baikal Rift Zone, the bottom of Lake Baikal is the deepest continental rift on the earth.
- The Gulf of Suez Rift
- Lake Timiskaming in Temiskaming Shores, Ontario
- Throughout the Basin and Range Province in North America
- The Rio Grande Rift in the southwestern US
- The rift zone that contains the Gulf of Corinth in Greece
- The Reelfoot Rift, an ancient buried failed rift underlying the New Madrid Seismic Zone in the Mississippi embayment
- The Rhine Rift, in south western Germany, known as the Upper Rhine valley
- The Taupo Volcanic Zone in the north east North Island of New Zealand
- The Oslo Graben in Norway
- The Ottawa-Bonnechere Graben in Ontario and Quebec
- The Northern Cordilleran Volcanic Province in British Columbia, Yukon and Alaska
- The West Antarctic Rift in Antarctica
- The Midcontinent Rift System, a late Precambrian rift in central North America
rift in Tosk Albanian: Grabenbruch
rift in Czech: Rift
rift in German: Grabenbruch
rift in Spanish: Zona rift
rift in French: Rift
rift in Italian: Rift
rift in Dutch: Rift
rift in Polish: Ryft
rift in Portuguese: Rift
rift in Russian: Рифт
rift in Slovak: Rift
rift in Finnish: Hautavajoama
rift in Swedish: Gravsänka
rift in Ukrainian: Рифтогенез
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