The silicic volcanic rocks of Carboniferous times has similar REE and trace elemental geochemistry as continental rhyolite.
石炭纪酸性火山岩的稀土和微量元素地球化学特征与陆内流纹岩相似。
Studies of petrology and elemental geochemistry indicate that the Xiangshan uranium ore-field dacite porphyry belongs to intra-plate shoshonitic rock type and is a kind of shoshonitic dacite porphyry.
岩石学、元素地球化学研究表明，相山铀矿田的英安斑岩属于板内型钾玄质岩类，为钾玄质英安斑岩。
On the above base, the status and function of fluid geochemistry in studying mechanisms of elemental paragenesis and separation are affirmed.
在此基础上，肯定了成矿流体地球化学在元素共生分异机制研究中的地位和作用。
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