Vitrinites

Japanese: vitrinite
Vitrinites

…The relationship between maceral groups, macerals, macroscopic appearance, and tissue components is shown in Table 1. Vitrinite is derived mainly from the xylem of plants and is the most homogeneous of the maceral groups. Its reflectance increases as coalification progresses, and it is used as an important indicator of the degree of coalification. Exinite is derived mainly from the cuticle and spores of plant leaves and twigs, pollen, seeds, water algae, and resin. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…マセラル・グループ,マセラルと,肉眼的外観,組織成分との関係は,表1のようになる。 ビトリニットvitriniteは,主として植物の木質部に由来し,マセラル・グループのなかで最も均質で,その反射率は石炭化が進むにつれて高くなり,石炭化度を示す一つの重要な尺度に用いられている。エクジニットexiniteは,主として植物の葉,小枝などの角皮と胞子,花粉,種子,水藻,樹脂質に由来する。…

※「vitrinite」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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