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Its parent magma belonged to calc-alkaline basaltic series. 母巖漿屬鈣堿性玄武巖系列；
The alkalic basaltic magma of this stage may be derived from asthenosphere. 該階段的堿性玄武巖漿可能來(lái)源于軟流圈。
Scientists have long believed that dacite can separate from basaltic magma to form granitic rocks. But they'd never 科學(xué)家們一直認(rèn)為英安巖可以從玄武質(zhì)的巖漿中分離出來(lái)形成花崗巖，但他們從沒(méi)奢望能在可操作的情況下看到這一過(guò)程。