Orthent


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Orthent

[′ȯr·thənt]
(geology)
A suborder of the soil order Entisol, well drained and of medium or fine texture, usually shallow to bedrock and lacking evidence of horizonation; occurs mostly on strong slopes.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
There arc two dominant soils on the site used for irrigation: Awaiti sandy loam is a Buried pumice Tephric Recent Soil (Hewitt 2010), an Aquent in USDA classification (Soil Survey Staff 2010); and Paroa silt loam on peat, an Acidic Recent Gley Soil (Hewitt 2010), an Orthent under the USDA classification (Table 1).
13 14.5 (C[degrees]) Paroa Soil texture Silt loam New Zealand soil class Acidic Recent Gley Soil USDA Great Soil Group Orthent Sand (%) 38 Silt (%) 42 Clay (%) 20 Mineralogy n.a.
The soils of the studied fields were entisols, and they were classified as Fluvent and Orthent at the suborder level, following the Soil Survey Staff [18].
Fluvent (Neossolo Fluvico) Depth (cm) Sand (%) Silt (%) Clay (%) 0-20 64.69 19.78 15.44 20-40 64.29 18.41 17.30 40-60 68.39 15.65 15.97 Orthent (Neossolo Regolitico) Depth (cm) Sand (%) Silt (%) Clay (%) 0-15 65.68 18.00 16.32 15-35 60.24 20.56 19.20 35-70 63.52 15.28 21.20 TABLE 2: General chemical properties of the soils studied.
Temples to Athena and Zeus on soils of citadels (Anthrept) contrast with those of Artemis and Apollo on rocky soils (Orthent, Xerept) of wilderness.
The native soils of Greece are limited in variety: largely Entisols (Fluvents, Orthents, Psamments), Inceptisols (Xerepts, Andepts, Anthrepts), Alfisols (Xeralfs), Mollisols (Xerolls), Vertisols (Xererts) and Andisols (Food and Agriculture Organization 1981).
None have strongly developed profiles, varying from simple organic-weathered (A-C profiles or Orthents) to organic-discoloured-weathered (A-Bw-C profiles or Xerepts).