英语词汇“island arc”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	island arc
释义	island arc noun Geology A curved chain of volcanic islands located at a tectonic plate margin, typically with a deep ocean trench on the convex side.The basalt-chert succession points more probably to an island arc developed on oceanic crust.... One model predicts tectonic wedging of the Solomon island arc beneath the Ontong Java plateau. These units originated as an oceanic plateau possibly formed atop an island arc before being accreted onto the Cordilleran orogen.
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