Dictionary > Laterite

Laterite

Definition
noun,plural: laterites
A layer of the soil that is abundant in iron oxide which is resulted from the various weathering of rocks under robustly oxidizing and leaching environment.
Supplement
The exposed layers are dark brown to reddish that are usually slaggy or lavalike form. It is normally soft when newly quarried but solidify on exposure.
Lateritic soils have clay minerals but poor in silica content since during weathering silica is leached out by water passing through the soil. It is frequently found in moisture areas such as in tropical and subtropical regions.
Laterites are source of aluminum ore which present largely in clay minerals and the hydroxides gibbsite, boehmite, and diaspore, which structurized the composition of bauxite.
Broad layers of laterite are spongy and somewhat permeable which can function as aquifers in rural areas and it is used in sewage treatment facilities wherein it is useful in acid solution followed by precipitation to remove heavy metals and phosphorus.
The recurrence of dry and wet seasons are the vital elements for the formation of laterites wherein during wet season rocks are leached by percolating rain water and the resulting solutions holding the leached ions are transported into the surface by capillary action during dry season.
Laterite have a high Cation Exchange Capacity compare to sandy soils yet if lateric soils becomes degraded a solid top layer will formed that hinders water infiltration and seedling growth.
Word Origin: later= “brick” or “tile” + ite (suffix)
See also:
• bauxite
• Cation Exchange Capacity
Related terms:
• lateric (adjective)


You will also like...

An artistic depiction of a human embryo
Growth and Development of a Human Baby

Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

Human gastrointestinal tract
Human Biology – Food and Digestion

This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

DNA - schematic
Genetic Mutations

This tutorial looks at the mutation at the gene level and the harm it may bring. Learn about single nucleotide polymorph..

Control of body movement
Control of Body Movement

Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..

running freshwater community
Running Water Freshwater Community Factors

This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..

Digestion and Absorption of Food
Digestion and Absorption of Food

The gastrointestinal system breaks down particles of ingested food into molecular forms by enzymes through digestion and..