loess wikipedia - EAS

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    Loess - Wikipedia

    https://en.wikipedia.org/wiki/Loess

    Loess is a clastic, predominantly silt-sized sediment that is formed by the accumulation of wind-blown dust. Ten percent of Earth's land area is covered by loess or similar deposits. Loess is an aeolian (windborne) sediment, defined as an accumulation of 20% or less of clay and a balance

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    Properties

    Loess is homogeneous, porous, friable, pale yellow or buff, slightly coherent, typically non-stratified and often calcareous. Loess grains are angular, with little polishing or rounding, and composed of crystals of quartz,

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    Etymology

    The word loess, with connotations of origin by wind-deposited accumulation, came into English from German Löss, which can be traced back to Swiss German and is cognatewith the English word loose and the German word los. It was first applied to Rhine River

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    History of research

    The term "Löß" was first described in Central Europe by Karl Cäsar von Leonhard (1823–1824) who reported yellowish brown, silty deposits along the Rhine valley near

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    Formation

    According to Pye (1995), four fundamental requirements are necessary for the formation of loess: a dust source, adequate wind energy to transport the dust, a suitable

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    Large areas of loess deposits and soils

    Central Asia
    From southern Tajikistan up to Almaty, Kazakhstan, spans an area of multiple loess deposits.
    East Asia

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    See also

    • Börde – North German loess regions
    • Gäue – South German loess regions
    • Loam – Soil composed of similar proportions of sand and silt, and somewhat less clay

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    Fertility

    Loess tends to develop into very rich soils. Under appropriate climatic conditions, it is some of the most agriculturally productive terrain in the world.
    Soils underlain by loess tend to be excessively drained. The fine grains weatherrapidly

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  2. Local regression - Wikipedia

    https://en.wikipedia.org/wiki/Local_regression

    Local regression or local polynomial regression, also known as moving regression, is a generalization of the moving average and polynomial regression. Its most common methods, initially developed for scatterplot smoothing, are LOESS (locally estimated scatterplot smoothing) and LOWESS (locally weighted scatterplot smoothing), both pronounced /ˈloʊɛs/. They are two strongly related non …

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  3. Loess - Wikipedia

    https://ro.wikipedia.org/wiki/Loess
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    Loessul este alcătuit în mare parte dintr-un nisip fin (ca. 20-50 %) și un praf argilos, transportate de vânt. După conținut, diferitele tipuri de loess se clasifică în argilos sau nisipos. Aceste tipuri pot apărea în straturi succesive. Din punct de vedere mineralogic, nisipul este alcătuit din granule de cuarț (50-80 %), praf calcar…
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    • Lœss — Wikipédia

      https://fr.wikipedia.org/wiki/Lœss
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      Le terme « lœss » ou « loess » est une transcription de l'allemand « Löss », terme introduit par le géologue allemand Karl Cäsar von Leonhard (en), probablement formé à partir de l'alémanique (dialecte suisse) lösch« peu compact, meuble, gros caillou ». D'autres termes sont utilisés dans la littérature francophone : 1. le limo…
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      • Löss – Wikipedia

        https://de.wikipedia.org/wiki/Löss
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        Der Begriff „Löß“ erschien erstmals 1821 im Zusammenhang mit Lössablagerungen im Rheintal und wurde 1823 von Karl Cäsar von Leonhard in die geologisch-mineralogische Literatur eingeführt. Er hat dabei wahrscheinlich den mundartlichen Ausdruck Lösch „lockerer Boden“ (von alemannisch lösch„lose“, „l…
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        • Loess – Wikipedia

          https://de.wikipedia.org/wiki/Loess

          Loess steht für: Locally Weighted Scatterplot Smoothing, kurz: LOESS, siehe Kernregression#Lokal lineare Kernregression. ein homogenes, ungeschichtetes, hellgelblich-graues Sediment, siehe Löss (engl. loess) Dies ist eine Begriffsklärungsseite zur Unterscheidung mehrerer mit demselben Wort bezeichneter Begriffe.

        • Loess - Wikipedia, la enciclopedia libre

          https://es.wikipedia.org/wiki/Loess

          El loess (del alemán de Suiza lösch, en alemán común: Löss) son depósitos sedimentarios limosos de origen eólico. Etimología. El término original alemán Löss o Löß, fue introducido en geología en 1821 [1] ...

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          • Löss - Wikipedia

            https://it.wikipedia.org/wiki/Löss

            Il löss /lœs/, più frequentemente trascritto come loess (la parola è di origine tedesca), è un tipo di sedimento eolico molto fine (delle dimensioni del limo); alle volte, il termine viene impropriamente utilizzato per indicare i suoli che su di esso si sono sviluppati.. Il löss è un sedimento eolico, che viene cioè originato dal trasporto e dalla deposizione di particelle da parte del ...

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            • Löss – Wikipedia

              https://sv.wikipedia.org/wiki/Löss

              Löss eller lus kan syfta på: . Lössjord – en lös vindavsatt avlagring som till största delen består av silt; Djurlöss – en ordning i klassen insekter, vetenskapligt namn Phthiraptera. Blodsugande löss – en underordning i ordningen djurlöss, vetenskapligt namn Anoplura. Flatlus – en art i insektsordningen djurlöss som är en ektoparasit i områden med grov hårväxt hos ...

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              • Löss – Vikipeedia

                https://et.wikipedia.org/wiki/Löss

                Löss on homogeenne poorne peeneteraline sete, mis koosneb peamiselt aleuriidist ning vähemal määral saviosakestest ja peeneteralisest liivast.. Löss on enamasti helekollast või pruunikat värvi. Löss koosneb küll peeneteralistest osakestest, kuid kaltsiitse tsemendi tõttu on nad sageli nii tugevasti üksteise külge kleepunud, et lössikihist võib moodustuda ka vertikaalne sein.

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