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单词 dacite
释义 dacite Geol.|ˈdeɪsaɪt|
[Named 1863 from Dacia, the Roman province including Transylvania + -ite.]
A name for varieties of greenstone or trachyte rock containing quartz.
[1878Lawrence Cotta's Rocks Class. 185 Stache has given the name of Dacit to a quartzose trachyte.]1879Rutley Stud. Rocks xii. 235 The chemical composition of the dacites varies considerably.
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更新时间:2024/12/22 18:37:23