EVALUATION OF THE AXIAL RATIO OF SOIL CLAYS FROM GRAY LOWLAND SOILS BASED ON VISCOSITY MEASUREMENTS
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概要
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The axial ratio of soil clays differing in their major mineral species was evaluated. The axial ratio for clays containing smectite as the predominant mineral was 18-24. Based on this axial ratio and the smectite content, the axial ratio for soil smectite was calculated to be 36-51. This value was lower than the axial ratio (90-97) for mineral montmorillonite. Clays containing kaolinite, mica, vermiculite, and vermiculite(or smectite)-chlorite intergrade as dominant minerals had axial ratios ranging from 9 to 16, depending on the specific surface area. For all the clays, the axial ratio increased linearly with increasing specific surface area. Also, in the region of a surface area of 200-400 m^2/g, the increase in surface area was due mainly to splitting of the particles in a direction parallel to the ab-plane.
- 社団法人日本土壌肥料学会の論文
著者
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Matsumoto Jun
Laboratory Of Clinical Pharmacology Graduate School Of Pharmaceutical Sciences Chiba University
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Egashira Kazuhiko
Laboratory Of Soils Faculty Of Agriculture Kyushu University
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Egashira Kazuhiko
Laboratory Of Soil Science Department Of Plant Resources Faculty Of Agriculture Kyushu University
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Matsumoto Jun
Laboratory Of Soils Faculty Of Agriculture Kyushu University
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