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By signing up for this email, you are agreeing to news, offers, and information from Encyclopaedia Britannica.Be on the lookout for your Britannica newsletter to get trusted stories delivered right to your inbox. Clay definition is - an earthy material that is plastic when moist but hard when fired, that is composed mainly of fine particles of hydrous aluminum silicates and other minerals, and that is used for brick, tile, and pottery; specifically : soil composed chiefly of this material having particles less than a specified size. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional.https://medical-dictionary.thefreedictionary.com/clay+soilHorizontal and vertical permeability tests are performed on silty sand with In figure 5 is shown graph and map of vibration spread in the A- David QI'M LOOKING for a good tree or shrub for A great variety for the domestic garden is 'Leonard Messel' as it doesn't grow too big and doesn't mind a The second type of soil represents the above mentioned sand mixed with clay powder under laboratory conditions and which is further entitled as Although the advantages and limitation of [PTF.sub.S] are well discussed by several authors [2], its applications to problematic soils such as Geologic clay deposits are mostly composed of phyllosilicate minerals containing variable amounts of water trapped in the mineral structure.

Soil that consists of over 50 percent clay particles is referred to as heavy clay. Such soils are poorly drained and aerated, and are composed largely of hydrated aluminosilicates. Clay is a type of fine-grained natural soil material that contains hydrous aluminium phyllosilicates (clay minerals) that develops plasticity when wet.

Clay soil is composed of tiny particles that are hard and able to become easily compacted. The resulting soil is quite sticky since there is not much space between the mineral particles, and it does not drain well at all. Clay, soil particles the diameters of which are less than 0.005 millimetre; also a rock that is composed essentially of clay particles. Clay soil definition is - a soil that contains a high percentage of fine particles and colloidal substance and becomes sticky when wet. Get kids back-to-school ready with Expedition: Learn!

Rock in this sense includes soils, ceramic clays, clay shales, mudstones, glacial clays (including great volumes of detrital and transported clays), and deep-sea clays (red clay, blue clay, and blue mud). If you have noticed that water tends to puddle on the ground rather than soak in, it is likely your ground consists of clay. The clay Gay Head Cliffs in Martha's Vineyard, Mass., U.S.This article was most recently revised and updated by

Earth dams are made impermeable to water by adding suitable clay materials to porous soil; water loss in canals may be reduced by adding clay. Depending on the soil's contentin which it is found, clay can appear in various colours fro… All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. thick, heavy earth that is soft when wet, and hard when dry or baked: Clay is used for making bricks and pots. Our editors will review what you’ve submitted and determine whether to revise the article.No other earth material has so wide an importance or such extended uses as do the clays.

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