Clay cutan

Japanese: clay cutan(英語表記)claycutan
Clay cutan

...When a thin section of an argillic soil is observed under a polarizing microscope, the deposition of clay particles with a flow structure that shows birefringence (called argillan) is observed around the pores. When the accumulation of clay is significant, a shiny clay film, clay cutan, can be seen with the naked eye on the surface of the soil structure unit. Soils where the process of residiation typically occurs are called sol lessivé in France, Parabraunerde in Germany, Alfisol in the United States, pseudopodzolic brown forest soil in Russia, and Luvisol in the FAO/UNESCO classification system. ...

*Some of the terminology that mentions "clay cutan" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…アルジリック層の土壌薄片を偏光顕微鏡で観察すると,孔隙(こうげき)の周辺に複屈折を示す流理構造をもった粘土粒子の沈積(アルジランという)が認められる。粘土の集積が顕著な場合には,土壌構造単位の表面に光沢のある粘土皮膜clay cutanが肉眼的にも認められる。レシベ化作用が典型的に生じている土壌は,フランスのレシベ土sol lessivé,ドイツのパラ褐色土Parabraunerde,アメリカのアルフィソルAlfisol,ロシアの偽ポドゾル性褐色森林土,FAO/UNESCO分類体系のルビソルLuvisolなどの名称で呼ばれている。…

※「clay cutan」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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