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Tectonic basins and rift valleys | Rift Valleys, Landforms & Geology | Britannica

SUBSCRIBESUBSCRIBESUBSCRIBE TO PREMIUMHomeHistory & SocietyScience & TechBiographiesAnimals & NatureGeography & TravelArts & CultureProConMoneyGames & QuizzesVideosOn This DayOne Good FactDictionaryNew ArticlesHistory & SocietyLifestyles & Social IssuesPhilosophy & ReligionPolitics, Law & GovernmentWorld HistoryScience & TechHealth & MedicineScienceTechnologyBiographiesBrowse BiographiesAnimals & NatureBirds, Reptiles & Other VertebratesEnvironmentFossils & Geologic TimeInsects & Other InvertebratesMammalsPlantsGeography & TravelGeography & TravelArts & CultureEntertainment & Pop CultureLiteratureSports & RecreationVisual ArtsImage GalleriesPodcastsSummariesTop QuestionsLists and StoriesBritannica KidsAsk the ChatbotGames & QuizzesHistory & SocietyScience & TechBiographiesAnimals & NatureGeography & TravelArts & CultureProConMoneyVideostectonic basins and rift valleysIntroductionRift valleysBasins and rangesPull-apart basinsRamp valleysForeland basinsReferences & Edit HistoryRelated TopicsImages & VideosGeography & TravelPhysical Geography of LandFacebookXhttps://www.britannica.com/science/tectonic-basinExploratorium - Tectonic BasinPeter H. Molnar Senior Research Associate, Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge.Britannica Editors Encyclopaedia Britannica's editors oversee subject areas in which they have extensive knowledge, whether from years of experience gained by working on that content or via study for an advanced degree....HistorycharacterizedflatvalleyvastEarth’s crustblockfaultbasingrabenanalogouslithosphereRift valleys1 of 2Lake Tanganyika, in the centre of the East African Rift System. As the Nubian and Somalian plates continue to diverge from one another, the depth of Lake Tanganyika increases.2 of 2See all videos for this articleEast African Rift SystemplateausVolcanoesLake TanganyikaLake NyasariftDeath ValleyaxisWestern Hemispheresea levelBaikal RiftlakeLake BaikalhorstflanksmountainMargherita PeakRuwenzori RangeSUBSCRIBE Horsts can be found in most rift valleys, but unlike the Ruwenzori, they rarely dominate the landscape. The floors of most rift valleys have dropped relative to the surrounding landscape, but the tops of horsts rarely stand higher than the surface outside the valleys. Thus most horsts are merely blocks that have remained at nearly the same height as the unbroken crust outside of the rift valleys. Most horsts exist because rift valleys formed adjacentmanifestsBelt BasinAnglo-Belgian BasinNorth German BasinHampshire BasinLondon BasinSee all related content

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