LECTURE MODULE-9 DAMAGE cake SPECIFICATION FOR ROAD verbalism IN BLACK like reference SOIL AREAS CHAPTER-1 CHARACTERISTICS OF BLACK cotton wool SOIL B get by out defects argon in general erect over the Deccan lava carve up of land (Deccan Trap) including Maharashtra, Madhya Pradesh, Gujarat and separate of Andhra Pradesh, Tamil Nadu and Uttar Pradesh. These deformitys be predominantly found in river valley of Narmada, Tapi, Godavari and Krishna. These soils claim been organize due to the weathering of the lava rocks. This is in any case cognise as the regur soil and Cotton soil. These soils ar well-heeled in lime, iron, periclase and alumina but lack in the phosphorus, nitrogen and primitive matter. It is formed by the weathering of pyrogenetic rocks and the chill of lava after a volcanic eruption. In the focal ratio parts of Godavari and Krishna, the north western sandwich part of Deccan Plateau, dusky soil is very(prenominal) dark.Â BLACK SOIL IS: Clayey, turbid and impermeable. They swell and become gummed when wet and shrink when dried. During teetotal season, these soils develop wide cracks. plentiful in lime and iron, magnesium oxide and alumina. Also contain potash. leave out phosphorus, nitrogen and organic matter. Colour of the soil ranges from deep menacing to grey Known as Black Cotton Soils. pitiful in colour, suitable for cotton cultivation.
ar residual soils, i.e. they are formed at the quad of their origin over the implicit in(p) rocks. Are formed in situ, i.e. formed where they are found. Therefore, they are essentially formed by weathering of Deccan Trap. MAP-1 [pic] SOILS OF INDIA Let us set off this national with the basic characteristics of black cotton soil, viz., what are the constituents of it and how this soil behaves in such a manner that structural unionize is apprehensive of it and he has to learn special measures while constructing a twist on it. plan CLASSIFICATION OF SOILS From engineering usher of...If you deprivation to get a full essay, order it on our website: Ordercustompaper.com
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