A chlorite-smectite intergrade in soil derived from pyroxene andesite altered hydrothermally in Mt. Kunimidake,Fukui, Central Japan |
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| Authors: | Yasuo Kitagawa Hiroaki Kurihara |
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| Institution: | Graduate School of Bioscience and Biotechnology , Fukui Prefectural University , Fukui, 910-1 195, Japan |
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| Abstract: | The interlayered hydroxy-aluminum of a chlorite-smectite intergrade in a dark-red soil derived from a pyroxene andesite altered by hydrothermal action was extracted easily by boiling treatments using both sodium-citrate and ammonium-fluoride solutions. Moreover, this interlayered aluminum was released partially by using a dithionite-citrate-bicarbonate system and an acid ammonium-oxalate solution which were prepared originally for removing the coexistent sesquioxides from soils. |
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| Keywords: | chlorite-smectite intergrade dark-red soil hydroxy-aluminum interlayer |
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