English Dictionary

chiastolite slate

名詞

(mineralogy) A rock formed by contact metamorphism of carbonaceous shale, characterized by prominent cleavage or schistosity and the presence of conspicuous chiastolite crystals in a fine-grained groundmass.

日本語の意味

接触変成作用により炭素含有泥岩が変成してできた岩石。顕著な劈開や片岩的構造を持ち、微細な基盤中に目立つキアストライト結晶が含まれる。

During the field survey, the geologist collected a sample of chiastolite slate that showed prominent cross-shaped crystals in a fine-grained, schistose matrix.

野外調査中、地質学者は、炭質頁岩の接触変成で形成され、細粒で片理がはっきりした基質中に顕著な十字形（十字石）結晶を含む板岩の試料を採取した。

意味（1）

(mineralogy) A rock formed by contact metamorphism of carbonaceous shale, characterized by prominent cleavage or schistosity and the presence of conspicuous chiastolite crystals in a fine-grained groundmass.

chiastolite slates （ plural ）