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    傅力浦, 张子福, 谢从瑞. 2004: 陕西紫阳志留系文洛克统底界附近弓笔石带的划分. 地质通报, 23(8): 795-798.
    引用本文: 傅力浦, 张子福, 谢从瑞. 2004: 陕西紫阳志留系文洛克统底界附近弓笔石带的划分. 地质通报, 23(8): 795-798.
    shu
    FU Lipu, ZHANG Zifu, XIE Congrui. 2004: Cyrtograptid zones near the lower boundary of the Silurian Wenlock Series in Ziyang,Shaanxi. Geological Bulletin of China, 23(8): 795-798.
    Citation: FU Lipu, ZHANG Zifu, XIE Congrui. 2004: Cyrtograptid zones near the lower boundary of the Silurian Wenlock Series in Ziyang,Shaanxi. Geological Bulletin of China, 23(8): 795-798.
    shu

    陕西紫阳志留系文洛克统底界附近弓笔石带的划分

    Cyrtograptid zones near the lower boundary of the Silurian Wenlock Series in Ziyang,Shaanxi

      摘要
    • 摘要: 根据最近在陕西紫阳地区芭蕉口仙中沟口剖面文洛克统底界附近采到的弓笔石之层位分布,划分出5个连续的弓笔石带C.lapworthi带—C.sakmaricus带—C.insectus带—C.centrifugus带—C.murchisoni带。这是目前世界上最完整的文洛克统底界附近弓笔石带序列之一,为文洛克统底界的确定提供了一个重要地点。

       

      Abstract: According to the characteristics and horizons of 6species of Cyrtograptus collected recently near the lower boundary of the Wenlock at the Xianzhonggoukou section,Bajiaokou,Ziyang,Shaanxi ,five continuous cyrtograptid zones are recognized;they are the Cyr

       

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