Fe _ 2 O _ 3, MnO, TiO _ 2 and Al _ 2 O _ 3 were enriched in clay, but SiO _ 2 in the non - clay fraction.

Fe_2O_3 、 MnO、 Al_2O_3反TiO_ 2向粘粒中富集, SiO_2向粗颗粒中富集;白浆土中粘土矿物似有微弱的破坏作用.

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Clay fraction is dominated by illite and kaolinite with small proportions of smectite, chlorite and vermiculite.

粘粒组成主要为伊利石和高岭石,也有少量蒙皂石 、 绿泥石和蛭石.

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