岛弧火山岩
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island arc volcanics 岛弧火山岩
The far and adjacent wallrocks have similar geochemical characters and indicates that they were island arc volcanics.
远矿围岩和近矿围岩具有相似的地球化学特征,属于岛弧火山岩。
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The geochemical study on meso basic meta volcanics in Zhangchun group, northeast Jiangxi shows island arc tholeiite is characteristic of low K and high Na contents;
赣东北张村岩群所含之中基性变火山岩的地球化学研究表明:其主元素具低钾高钠;
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