"CHLORITIZED" VERMICULITE AND SMECTITE IN SOME INCEPTISOLS AND SPODOSOLS

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概要

• 論文の詳細を見る

• "Chloritized" vermiculite and smectite in the B horizons of two Inceptisols derived from volcanic ash and two Spodosols were studied by a combination of methods. The "chloritized" minerals did not expand with Mg- or Ca-saturation and glycerol solvation and did not collapse upon K-saturation and heating at 300℃ after treatment with dithionite-citrate or dithionite-citrate and oxalate-oxalaic acid, whereas they did expand and collapse after the subsequent extraction with hot 1/3M sodium citrate. All these treatments extracted substantial amounts of Si, Al and Fe from the clays containing the "chloritized" minerals. The materials extracted with citrate had Si/Al molar ratios close to 1.0 or 2.0 and gave infrared spectra of layer silicates. It was concluded that certain "chloritized" vermiculites and smectities do not contain hydroxy-Al but contain aluminosilicate with the composition of 1 : 1 or 2 : 1 layer silicate as an "interlayer" material.

• 社団法人日本土壌肥料学会の論文

著者

• FUKUHARA Ken-ichi

  Central Research Laboratories, Ajinomoto Co., Inc.

• Fukuhara K

  Central Research Laboratories Ajinomoto Co. Inc.

• Kakuto Yasuko

  Faculty Of Agriculture Kyushu University

• Kakuto Yasuko

  Faculty Of Agriculture. Kyushu University

• Wada Koji

  Faculty Of Agriculture

• FUKUHARA Katsuya

  Faculty of Agriculture. Kyushu University

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