American Heritage® Dictionary of the English Language, Fourth Edition
- n. A buff to gray windblown deposit of fine-grained, calcareous silt or clay.
Century Dictionary and Cyclopedia
- n. In geology, originally, a certain loamy deposit in the valley of the Rhine; now, by extension, any detrital accumulation more or less resembling the original loess occurring in other parts of the world. The loess is a very fine loam, very homogeneous in character, showing hardly any indication of stratification, and containing in numerous localities large quantities of land and fresh-water shells, as well as bones of land-animals. In northern China it covers a vast area and is developed to a great thickness, and, being deeply eroded by the rivers, has given rise to a very remarkable topography. In the regions where the loess occurs it is the most recent of the formations. The theories of its origin are numerous, and the subject is one of great complexity, so that “some skilful geologists, peculiarly well acquainted with the physical geography of Europe, have styled the loess the most difficult geological problem.” (Lyell.) Much that is called loess by some geologists is certainly river-mud deposited in the ordinary manner. Lyell connects the loess of the Rhine valley with glacial action; and Richthofen considers it as beyond dispute that the loess of China is a subaërial deposit, borne by the wind to its present resting-place.
GNU Webster's 1913
- n. (Geol.) A quaternary deposit, usually consisting of a fine yellowish earth, on the banks of the Rhine and other large rivers.
- n. a fine-grained unstratified accumulation of clay and silt deposited by the wind
- German Löss, from German dialectal Lösch, from lösch, loose; see leu- in Indo-European roots. (American Heritage® Dictionary of the English Language, Fourth Edition)
“A certain deposit called loess or hwang-t'u (yellow earth) covers a great part of”
“Together with previously reported U-series dating of speleothem calcite and palaeomagnetic stratigraphy, as well as sedimentological considerations, these layers may be further correlated to S6-S7 in Chinese loess stratigraphy or marine isotope stages (MIS) 17-19, in the range of ∼ 0.68 to 0.78”
“Soils are silty and loamy, and formed in loess, which is thinner than in neighboring 27b, and with areas of sandy soils formed in sandstone.”
“River here you have a covering of what the Germans call loess, fine, wind-blown material, silt loam.”
“In northern China an area as large as France is deeply covered with a yellow pulverulent earth called loess (German, loose), which many consider a dust deposit blown from the great”
“Intimately connected with the subjects treated of in the last chapter, is the nature, origin, and age of certain loamy deposits, commonly called loess, which form a marked feature in the superficial deposits of the basins of the Rhine, Danube, and some other large rivers draining the Alps, and which extend down the”
“The bluffs before alluded to often consist of a terrace of gravel, from 30 to 40 feet in thickness, covered by an older loess, which is continuous as we ascend the valley to”
“They know that they like to farm in places with green soils, what we would call loess.”
“All of them are made of the same earth as that which lies around them -- a light, sandy loess which is easily removed with a shovel, requiring no picking or other loosening.”
“These dirt-cliffs, or "loess," to give them their scientific name, are remarkable banks of brownish-yellow loam, found largely in Northern and Western China, and rising sometimes to a height of a thousand feet.”
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Soil samples for stone soup.
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The descriptive science described.
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