新疆克孜勒塔格长杠子南中元古代石英闪长岩-正长花岗岩序列地球化学特征

摘要

Changgangzi Mesoproterozoic granite sequence is located in the Beishan rock group,Keziletage,Xinjiang.The magmatism is widespread in this area between the Mesoproterozoic and the Permian.During the 1 : 50000 regional geology and mineral resources investigation.the geochemical,isotopic and petrological characteristics of the Changgangzi Mesoproterozoic granites have been studied in order to investigate their petrogenesis and intrusive ages.%新疆克孜勒塔格地区长杠子南中元古代变质花岗岩序列侵位于北山岩群中,从古元古代到二叠纪该地区岩浆作用非常活跃.1∶5万区域地质矿产调查工作,初步查明该区中元古代变质花岗岩的岩石学、岩石地球化学、同位素年代学等特征.通过对长杠子中元古代花岗岩序列岩石地球化学和同位素年代学研究,探讨该期侵入岩成因与就位机制及侵位时代.