plinthite

Japanese: plinthite
plinthite

...(3) A hardened ferruginous weathered crust, or hardpan, found in the tropics, consisting mainly of bauxite and hydrous iron oxide. To avoid such conceptual confusion, today the material originally called "laterite" by Buchanan has been redefined as plinthite (from the Greek word plinthos, meaning brick), and the term laterite is now used exclusively to refer to hardened plinthite. In connection with this change in the concept of laterite, the meaning of lateritization and lateritic soils has also changed.

*Some of the terminology explanations that mention "plinthite" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…(3)熱帯に分布する硬化した含鉄質風化殻すなわち硬盤層で,主としてボーキサイトや含水酸化鉄からなる物質。 このような概念の混乱を避けるため,今日ではブカナンが最初に〈ラテライト〉とよんだ物質はプリンサイトplinthite(煉瓦を意味するギリシア語のplinthosに由来)として再定義され,ラテライトという用語は硬化したプリンサイトに限定して用いられるようになってきている。このようなラテライトの概念の変遷と関連して,ラテライト化作用やラテライト性土壌の意味内容も変化している。…

※「plinthite」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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