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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 - Wikipedia
    Loess is a periglacial or aeolian (windborne) sediment, defined as an accumulation of 20% or less of clay with a balance of roughly equal parts sand and silt (with a typical grain size from 20 to 50 micrometers), [3][4] often loosely cemented by calcium carbonate
  • Loess | Wind-Deposited Sediment Soil Formation | Britannica
    Loess, 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 - 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
  • 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
  • What Is Loess? Its Formation, Characteristics, and Importance
    Loess is an unconsolidated terrestrial sedimentary deposit composed primarily of silt-sized grains that blanket large areas of the Earth’s surface This material originates as wind-blown dust, technically known as an aeolian sediment
  • Understanding Loess Soil Formation and Properties
    Loess is a type of fine-grained, wind-blown sediment predominantly composed of silt-sized particles that are loosely cemented together It is typically yellowish, pale brown, or buff in color and is known for its uniform texture and high porosity
  • Loess records | U. S. Geological Survey - USGS. gov
    Loess is an eolian deposit, composed mainly of silt grains, which can be identified in the field as a distinct sedimentary body It covers a significant portion of the land surface of the Earth and is one of the most important terrestrial archives of long-term dust deposition
  • 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
  • Loess: Rock, sediment or soil – What is missing for its definition?
    This review gives an overview on loess definitions through time and evaluates the main concepts related to loess formation Several gaps of knowledge are identified that require a number of specific studies related to different aspects of loess formation in various environments
  • Loess Soil - U. S. National Park Service
    The loess deposits of western Mississippi originated to the north during the Pleistocene Ice Age As the glaciers in what is now Canada and the northern United States moved, they would grind up the bedrock and other rock debris into a fine flour-like soil





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