科学家们一直认为英安岩可以从玄武质的岩浆中分离出来形成花岗岩，但他们从没奢望能在可操作的情况下看到这一过程。
Scientists have long believed that dacite can separate from basaltic magma to form granitic rocks. But they'd never.
应用不同活化剂处理不同性质的磷肥 ，对其在玄武岩母质的桉树人工林土壤中的生物效应及其作用机理进行了研究。
Several activation agents were used to treat various phosphate fertilizers and their biological effect and mechanism in soil under the eucalypt plantation on basalt latolol were studied.
火山岩的组成通常是安山岩，但在某些地区玄武岩质和流纹岩质也很丰富。
The volcanics are commonly andesitic in composition, but basaltic and rhyolitic volcanics are abundant in some areas.
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