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本文研究了安徽女山14个单斜辉石巨晶。它们属于铝普通辉石、透辉石和铁钠造辉石。主要元素、稀土和微量元素及同位素特征表明:它们是同一碱性玄武岩浆在幔源条件下不同程度结晶分异的产物,相对于寄主岩均属捕虏晶,可能自中生代即已开始形成。
In this paper, fourteen clinopyroxene megacrysts in Nvshan of Anhui Province are studied. They belong to aluminum pyroxene, diopside and iron sodium pyroxene. The major elements, rare earths, trace elements and isotopes indicate that they are the products of different degrees of crystallization differentiation under the mantle source of the same basic basaltic magma, which are all captives relative to the host rocks and may have formed since Mesozoic.