Olivine norite - Olivine norite

Japanese: カンラン石ノーライト - かんらんせきのーらいと
Olivine norite - Olivine norite

…The colorless minerals are mainly plagioclase, which is richer in calcium than labradorite, and the colored minerals include augite, orthopyroxene, olivine, and amphibole. Rock types are classified according to the type and amount of colored minerals they contain; rocks that contain mainly augite are called gabbro in the strict sense, those that contain mainly orthopyroxene are called norite, those that contain a lot of olivine are called olivine gabbro and olivine norite. Rocks that contain only olivine are called troctolite. …

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

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…無色鉱物はラブラドライトよりカルシウムに富む斜長石が主体で,有色鉱物としては,普通輝石,斜方輝石,カンラン石,角セン石などがある。岩石の種類は含まれる有色鉱物の種類や量比によって分けられ,主として普通輝石が含まれるものを狭義の斑レイ岩,斜方輝石主体のものをノーライト,カンラン石の多いものはカンラン石斑レイ岩,カンラン石ノーライトという。カンラン石のみのものはトロクトライトという。…

※「カンラン石ノーライト」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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>>:  Olivine dolerite - Olivine dolerite

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