MasteryExams
Geography • Physical GeographyHard

In the study of soil micromorphology within the high-altitude hill tracts of the Western Ghats in Kerala, which pedogenic regime is primarily responsible for the genesis of deeply weathered lateritic profiles containing high concentrations of gibbsite and goethite?

A. Ferralitization driven by intense leaching of silica under alternating wet and dry tropical weathering conditions✓ Correct Answer
B. Calcification promoted by high evaporation rates in semi-arid environments with sparse vegetation cover
C. Podzolization occurring exclusively beneath cold coniferous forests with acidic needle litter accumulation
D. Gleization induced by permanent waterlogging and anaerobic reduction of iron compounds in lowland swamps

💡 Solution & Explanation

Ferralitization or lateritization occurs in tropical regions with high rainfall and temperature, where intense leaching removes soluble bases and silica, leaving behind insoluble oxides of iron and aluminium. Calcification is typical of dry grasslands rather than humid tropical mountains. Podzolization is characteristic of cold temperate taiga zones. Gleization forms hydromorphic gleysols in waterlogged valley bottoms rather than freely drained hill slopes. Laterites harden upon exposure to air and serve as traditional building stones in Kerala.

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