loess


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Related to loess: Loess Plateau

lo·ess

 (lō′əs, lĕs, lŭs)
n.
A buff to gray windblown deposit of fine-grained, calcareous silt or clay.

[German Löss, from German dialectal Lösch, from lösch, loose; see leu- in Indo-European roots.]

lo·es′si·al (lō-ĕs′ē-əl, lĕs′ē-əl, lŭs′-) adj.

loess

(ˈləʊɪs; German lœs)
n
(Geological Science) a light-coloured fine-grained accumulation of clay and silt particles that have been deposited by the wind
[C19: from German Löss, from Swiss German dialect lösch loose]
loessial, loˈessal, loˈessic adj

lo•ess

(ˈloʊ ɛs, lɛs, lʌs)

n.
a loamy, usu. yellowish and calcareous deposit formed by wind, common in the Mississippi Valley and in Europe and Asia.
[1825–35; < German Löss < Swiss German lösch loose, slack (sch taken as dial. equivalent of German s)]
lo•ess′i•al, adj.

lo·ess

(lō′əs, lĕs, lŭs)
A very fine grained silt or clay, thought to be deposited as dust blown by the wind. Most loess is believed to have originated during the Pleistocene Epoch from areas of land covered by glaciers and from desert surfaces.

loess

- Loam composed of matter transported by wind, from German losz, "loosen."
See also related terms for loosen.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.loess - a fine-grained unstratified accumulation of clay and silt deposited by the wind
dirt, soil - the part of the earth's surface consisting of humus and disintegrated rock
Translations

loess

[ˈləʊɪs] Nloess m

loess

nLöss m, → Löß m
References in classic literature ?
We have evidence in the loess of the Rhine of considerable changes of level in the land within a very recent geological period, and when the surface was peopled by existing land and fresh-water shells.
This study aims to rectify this omission by applying one of these models to soil water dynamics under Loess Plateau conditions.
The experimental study of fracture grouting is mainly focused on soft soil, and the research on the splitting, diffusion process, and spatial geometry of the fracture grouting in loess is very rare.
[8] analyzed changes in the mean and extreme temperature and precipitation values in the Loess Plateau between 1961 and 2011 using a gridded dataset and found out that the total amount of precipitation on wet days decreased over a large area of the Loess Plateau, and there were only minor changes in extreme precipitation over the Loess Plateau.
Soil type Thickness (m) Moisture Gravity Void content (%) (kN.m3) ratio Loess 10.4 8.5 14.1 0.96 Loess 4.8 16.5 14.9 0.89 Pebble 3.3 21 24.8 1.15 Mudstone -- -- 25.3 -- Soil type Compression Compression Bearing capacity coefficient modulus (MPa) eigenvalues (kPa) ([MPa.sup.-1]) Loess 0.21 6.2 150 Loess 0.23 7.6 180 Pebble -- -- 400 Mudstone -- -- 600
At present, the study of permittivity of unsaturated loess is few, and the direct measurement of the permittivity of unsaturated loess by GPR has little result in this field.
The buried depth of groundwater in the loess ridge and hilly area is generally greater than 15 m.
Quaternary deposits are represented mainly by Pleistocene river terraces, loess and related sediments, Pleistocene to Holocene peat-bog and swamp sediments, Pleistocene to Holocene slope sediments, Late Glacial to Early Holocene cemented talus sediments and Holocene tufa.
For example, [3] employs an STL method to decompose the main trend based on Loess, while [4] applies a piecewise approximation method to extract the underlying long-term trend.
[15] used this method to analyze the infiltration characteristic of loess. Guided by the idea of integrating the above two methods of determining the unsaturated infiltration coefficient, this study conducted a horizontal one-dimensional (1D) seepage test to measure the diffusion coefficient and used SWCCs of remolded loess of different dry densities to modify the Mualem model.
The loess is one kind of typical structural soil and is with an area of 630,000 [km.sup.2] which comprises 6.6% of Chinese territory [1].
This study showed that biochar application could be used as the soil amendment in the Loess Plateau to weaken the restriction of water shortage and promote plant growth.