研究表明，红土风化壳剖面自下而上，伊利石、高岭石减少，三水铝石、针铁矿、赤铁矿增多。
The study shows that from the bottom to the top of laterite weathering crust profile, illite and kaolin decrease, gibbsite, goethite and hematite increase.
综述了近年来网纹红土研究的事实成果，结果表明：网纹红土的强酸、富铝化特征明显；
The studies of vermiculated red soil in recent years are summarized, The results show that the strong acid and laterized characteristics of vermiculated red soil are obvious;
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