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阿拉善地块北部二叠纪花岗岩从浆源区到定位的多阶段岩浆混合成因及构造背景
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摘要
<正>组成复式岩基的有镁铁质暗色岩浆包体(mafic magmatic enclaves,MME)发育的钙碱性(I型)花岗岩,及其伴生的少量块状镁铁质侵入体的成因,以及复式岩基中该岩石组合的意义和其形成地球动力学模型的认识,仍然是国际学术界争议的热点,如复式岩基中I型花岗岩混合成因问题,岩石成因模型对应的大陆地壳生长方式等。阿拉善地块北部雅布赖-诺尔公-红古尔玉林构造带广泛出露二叠纪的I型花岗岩(其中广泛发育MME)和伴生的少量辉长岩侵入体组成的复式岩基,是研究复式岩基
引文
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