felsite

Japanese: felsite
felsite

…Felsic volcanic rocks include dacite, rhyolite, trachyte, and phonolite. Hypneumatic rocks include granite, granite, and felsic rock. Fine-grained rocks containing almost no phenocrysts are called felsite. The main constituent minerals of felsic rocks are quartz, feldspars, feldspars, muscovite, etc. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…フェルシック火山岩はデイサイト,流紋岩,粗面岩,フォノライト,半深成岩は花コウ斑岩等,深成岩は花コウ岩,花コウセン緑岩,セン長岩等である。斑晶をほとんど含まず細粒のものをケイ長岩felsiteとよぶ。フェルシック岩のおもな構成鉱物は石英,長石類,準長石類,白雲母などである。…

※「felsite」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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