三种火山岩均属钾质钙碱性系列，岩石化学成分显示为同源岩浆产物。
The three volcanics are of kalium alkaline series, with their chemical elements showing the same magma origin.
岩石化学特征表明火山岩形成于洋岛构造环境。
Its petrochemical characteristics show that the volcanics was formed in oceanic island tectonic environment.
岩石化学、球化学特征表明，该组火山岩属碱性玄武岩系列大西洋型(质类型)具洋岛特征。
It belong series of the alkaline basalt, and have character of island ocean in geochemistry and petrochemistry.
其岩石化学及地球化学显示岛弧火山岩特征。
Its petrochemical characteristics show that the volcanics was formed in oceanic island tectonic environment.
其岩石化学及地球化学显示岛弧火山岩特征。
Its petrochemical characteristics show that the volcanics was formed in oceanic island tectonic environment.
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