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Laterite is a soil type rich in iron and ... India Example of construction with laterite in ... 65 It is a variety of laterite (residual sedimentary rock), ...
Laterite is a residual product created by the natural process of rocks weathering in the hot humid climatic conditions and interaction with water, oxygen and carbon dioxide. In simple terms, it is a soil formation linked to the parent rock material that has evolved because of various powers of nature in the same manner as other types of soils ...
Laterite soils are formed from chemical decomposition of rocks. soils mainly contain iron oxide which gives them characteristic pink or red color. These soils are found in Central,Eastern and Southern India. These are residual soils is formed from basalt and have high specific gravity. These soils are mostly composed as calcite depositions.
The following is a list of rock types recognized by geologists.There is no agreed number of specific types of rock. Any unique combination of chemical composition, mineralogy, grain size, texture, or other distinguishing characteristics can describe a rock type.
Typical nickel laterite ore deposits are very large tonnage, low-grade deposits located close to the surface.They are typically in the range of 20 million tonnes and upwards (this being a contained resource of 200,000 tonnes of nickel at 1%) with some examples approaching a billion tonnes of material.
The lateritic bauxites are found mostly in the countries of the tropics. They were formed by lateritization of various silicate rocks such as granite, gneiss, basalt, syenite, and shale. In comparison with the iron-rich laterites, the formation of bauxites depends even more on intense weathering conditions in a location with very good drainage.
The weathering of rocks by leaching and oxidising conditions results in the formation of clay-like [22] minerals such as goethite, lepidocrocite, and hematite. [22] Some of them can hold rare earth minerals as well as iron, nickel and the alumina for which it is often mined. [23] [24] [24] Laterite results from the weathering of basalt.
A soil horizon accumulating leached and eluviated materials is referred to as a zone of illuviation. Laterite soil, which develops in regions with high temperature and heavy rainfall, is an example of this process in action.