Loess - Wikipedia
WebA loess ( US: / ˈlɛs, ˈlʌs, ˈloʊ.əs /, UK: / ˈloʊ.əs, ˈlɜːs /; from German: Löss [lœs]) is a clastic, predominantly silt -sized sediment that is formed by the accumulation of wind-blown dust. [1] . Ten percent of Earth's land area is covered by loesses or similar deposits. [2]
Local regression - Wikipedia
WebLOESS curve fitted to a population sampled from a sine wave with uniform noise added. The LOESS curve approximates the original sine wave. Local regression or local polynomial regression, also known as moving regression, is a generalization of the moving average and polynomial regression.
Loess | Wind-Deposited Sediment & Soil Formation | Britannica
Webloess, an unstratified, geologically recent deposit of silty or loamy material that is usually buff or yellowish brown in colour and is chiefly deposited by the wind. Loess is a sedimentary deposit composed largely of silt-size grains that are loosely cemented by calcium carbonate.
Loess - National Geographic Society
WebJan 3, 2024 · Loess is mostly created by wind, but can also be formed by glaciers. When glaciers grind rocks to a fine powder, loess can form. Streams carry the powder to the end of the glacier. This sediment becomes loess. Loess ranges in thickness from a few centimeters to more than 91 meters (300 feet). Unlike other soils, loess is pale and …
Loess - Age, Origin, Deposits | Britannica
WebLoess - Age, Origin, Deposits: For more than a century a number of partly conflicting and partly complementary hypotheses have been put forward to explain the origin of the silt fraction of loess.
Loess - Deposits, Windblown, Soils | Britannica
WebLoess - Deposits, Windblown, Soils: The world’s largest loess-covered areas lie between latitudes 55° and 24° N: in China on the banks of the Huang Ho; on the margins of the continental deserts of Inner Asia; in Central Asia in Kazakhstan, Uzbekistan, the foreland of the Tien Shan, and east of the Caspian Sea; and in Siberia along Lake ...
Loess genesis and worldwide distribution - ScienceDirect
WebFeb 1, 2020 · Traditionally, loesses are classified as glacial, desert, or other types based only on source area characteristics without taking into account provenance and transportation. Research on loess genesis is often local with only a few attempts at systematically overviewing worldwide loess distribution.
Climatic and Biotic Controls on Silt Production and Accumulation of Loess
WebLoess is a widespread, wind-transported, silt-dominated geologic deposit that covers about 10 percent of the Earth's land surface. Millions of people live in homes, work at businesses and use...
Eolian Settings: Loess | SpringerLink
WebJun 4, 2023 · Loess is a fine-grained sedimentary material resulting from the deposition of eolian dust, which extensively accumulated in some areas of the world during the Quaternary; it is also recorded in older geologic intervals (e.g., Pfeifer et al. 2021 ).
Loess geology and surface processes: An introductory note
WebSep 15, 2020 · Loess is a type of Quaternary sediments of the wind origin in arid and semi-arid regions. This type of sediment is widely and thickly distributed in China, forming the Loess Plateau, which is the largest bulk accumulation of loess on the Earth.
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