RELATIONSHIPS BETWEEN THE PRIMARY MINERAL AND THE CLAY MINERAL COMPOSITIONS OF SOME RECENT ANDOSOLS
スポンサーリンク
概要
- 論文の詳細を見る
Relationships between the clay mineralogy and the primary mineral association were studied on seventeen Andosol samples (<3,000 years old) collected from Aomori, Hokkaido, and Iwate. Opaline silica, allophane, and imogolite were predominant in the soils derived from volcanic ashes which contained practically no quartz, while opaline silica, crystalline layer silicates, alumina-rich gel-like materials, and allophanelike constituents were abundant in the soils which contained abundant quartz. There was no positive indication of the presence of allophane in any quartz andesitic Andosols. High contents of finely comminuted amphibole and mica in the quartz andesitic volcanic ashes suggested that the crystalline layer silicates are inherited and are not formed pedochemically from amorphous materials.
- 社団法人日本土壌肥料学会の論文
著者
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MIZOTA Chitoshi
Faculty of Agriculture, Iwate University
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Mizota Chitoshi
Faculty Of Agriculture Iwate University
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