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Effect of weathering and parent materials on clay mineralisation: red ferruginous soils of humid tropics



Effect of weathering and parent materials on clay mineralisation: red ferruginous soils of humid tropics



Proceedings of the Indian National Science Academy, B 40(2): 182-191



The formation of clay minerals of humid tropical soils of India within the parallels 18 deg 23' and 18 deg 32' latitude and 82 deg 40' and 82 deg 33' longitude, were interpreted in terms of weathering ionic environment. Acid igneous rock rich in K-felspars and muscovite is the principal parent material in association with some basic components. Influence of the latter is masked by the drastic weathering which introduced H+ in large proportion in the exchange complex.

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