颉颃强, 张福勤, 苗来成, 李铁胜, 刘敦一. 2007: 吉林中部漂河川镁铁-超镁铁质杂岩带的特征:对华北东北缘构造带性质和演化的约束. 地质通报, 26(7): 810-822.
    引用本文: 颉颃强, 张福勤, 苗来成, 李铁胜, 刘敦一. 2007: 吉林中部漂河川镁铁-超镁铁质杂岩带的特征:对华北东北缘构造带性质和演化的约束. 地质通报, 26(7): 810-822.
    XIE Hang-qiang, ZHANG Fu-qin, MIAO Lai-cheng, LI Tie-sheng, LIU Dun-yi. 2007: Characteristics of the Piaohechuan mafic-ultramafic complex, central Jilin, Northeast China:Constrains on the nature and evolution of the northeastern North China marginal tectonic belt. Geological Bulletin of China, 26(7): 810-822.
    Citation: XIE Hang-qiang, ZHANG Fu-qin, MIAO Lai-cheng, LI Tie-sheng, LIU Dun-yi. 2007: Characteristics of the Piaohechuan mafic-ultramafic complex, central Jilin, Northeast China:Constrains on the nature and evolution of the northeastern North China marginal tectonic belt. Geological Bulletin of China, 26(7): 810-822.

    吉林中部漂河川镁铁-超镁铁质杂岩带的特征:对华北东北缘构造带性质和演化的约束

    Characteristics of the Piaohechuan mafic-ultramafic complex, central Jilin, Northeast China:Constrains on the nature and evolution of the northeastern North China marginal tectonic belt

    • 摘要: 漂河川镍矿的辉长岩锆石SHRIMP U-Pb定年给出了222Ma±8Ma的年龄,表明其形成于晚三叠世.研究结果表明,该岩体不属于蛇绿岩的成员,而是热侵位的镁铁-超镁铁质岩,侵位时代在区域性的变质变形事件之前.结合地球化学资料、相邻地区的大地构造相及热年代学的研究结果,认为区域上的造山作用主幕很可能发生在中生代,而不是原来认为的二叠纪末.漂河川和相关地区的镁铁-超镁铁质岩应该形成于碰撞造山之前,很可能属于大陆边缘裂谷性质.

       

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