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Loess | Wind-Deposited Sediment & Soil Formation | Britannica

SUBSCRIBESUBSCRIBESUBSCRIBEHomeHistory & 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 & CultureProConMoneyVideosloessIntroductionPhysical and chemical properties.Distribution and classification.Origin and age.References & Edit HistoryQuick Facts & Related Topicsloess summaryThe Solid Earth QuizScienceEarth Science, Geologic Time & FossilsEarth SciencesFacebookXhttps://www.britannica.com/science/loessFace of the Earth - LoessHow Stuff Works - Science - LoessIllinois State Museum - Loess and TillBritannica 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....Historycalcium carbonatehomogeneoustraversedconnotationsstratasandconstitutesconstituteloamEuropeNorth AmericaEarthsoilconduciveintensive agricultureLoess PlateauChinaPueblo IndiansadobeabundanceSand HillsclayBritannica Quiz The Solid Earth QuizquartzFeldsparsmicascarbonatessiltconstituentscompositionmineralSUBSCRIBE The chemical composition of loess most often falls within the following percentage ranges: silica, SiO2, 50 to 60; alumina, Al2O3, 8 to 12; iron oxide as Fe2O3, 2 to 4; iron oxide as FeO, 0.8 to 1.1; titanium dioxidedepositionaggregateslimefissureterrigenous sedimentSee all related contentacceleratederosion

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