…(3) C layer: The layer that becomes the parent material of soil, consisting of weathered fine minerals, and is the part that is not greatly affected by the soil formation process. (4) R layer: The part of consolidated unweathered rock below the C layer. *Some of the terminology that refers to the "R layer" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…(3)C層 土壌の母材になる層で,風化した微小な鉱物質からなり,土壌生成過程の影響をあまり受けていない部位をいう。(4)R層 C層の下にある固結した未風化岩石の部位をいう。 ※「R 層」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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