In 1800, while on a journey through Malabar and Kanara in present day India, Buchanan(1) reported on a material which could be cut “with a trowel or a large knife” and when exposed to air became hard. He called this an “indurate clay.” The material, which the natives called itica cullu, vettu cullu or kallu and meaning brick stone or cut stone, he named, from the Latin, laterite. meaning brick.
KeywordsSource Rock Soil Horizon Mafic Rock Lateritic Soil Groundwater Temperature
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