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loess    音标拼音: [l'oəs]
n. 黄土

黄土

loess
n 1: a fine-grained unstratified accumulation of clay and silt
deposited by the wind

Loess \Loess\ (l[~e]e), n. [G. l["o]ss.] (Geol.)
A quaternary deposit, usually consisting of a fine yellowish
earth, on the banks of the Rhine and other large rivers.
[1913 Webster]


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  • Loess | Wind-Deposited Sediment Soil Formation | Britannica
    Loess is a sedimentary deposit composed largely of silt-size grains that are loosely cemented by calcium carbonate It is usually homogeneous and highly porous and is traversed by vertical capillaries that permit the sediment to fracture and form vertical bluffs
  • LOESS Definition Meaning - Merriam-Webster
    The meaning of LOESS is an unstratified usually buff to yellowish brown loamy deposit found in North America, Europe, and Asia and believed to be chiefly deposited by the wind
  • Loess - National Geographic Society
    In some parts of the world, windblown dust and silt blanket the land This layer of fine, mineral-rich material is called loess Hikers climb the rolling ridges of the Loess Hills in the western part of the U S state of Iowa
  • Loess and Paleosols - National Centers for Environmental Information
    Loess are silt-sized particles deposited on the Earth's surface by winds Extensive loess deposits formed during the Ice Ages in areas bordering large, continental glaciers Paleosols are past soil horizons preserved in a geologic section, indicative of changes in variables such as temperature and precipitation
  • Loess genesis and worldwide distribution
    Loess is a loose aeolian deposit of yellowish silt-sized dust mostly formed during the Quaternary period Generally, it has a homogenous and porous structure and consists primarily of quartz and felspar particles Ancient Chinese scholars linked the formation of loess to wind-blown dust 2000 years ago
  • Loess records | U. S. Geological Survey - USGS. gov
    Loess is aeolian sediment, dominated by silt-sized particles, that is identifiable in the field as a distinct sedimentary body It covers a significant portion of the land surface of the Earth and as such constitutes one of the most important archives of long-term dust deposition
  • Climatic and Biotic Controls on Silt Production and Accumulation of Loess
    Loess 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
  • Loess - SpringerLink
    Loess is a homogeneous, typically nonstratified, porous, friable, slightly coherent, often calcareous, fine-grained, silty, pale yellow or buff, windblown (aeolian) sediment Loess consists mainly of quartz particles predominantly of silt with subordinate grain sizes ranging from clay to fine sand (Muhs and Bettis, 2003 ; Pye, 1995 ; Smalley
  • What Is Loess? - BYJUS
    What Is Loess? Loess is an aeolian landform due to sedimentary deposition of silty and loamy substances Some significant examples of this landmass are as follows-China’s Huang Ho river banks; Edge of Continental deserts of Inner Asia; Great Plains in North America
  • Loess - Age, Origin, Deposits | Britannica
    Loess - 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





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