石和, 陶晓风, 胡新伟, 马润则, 刘登忠, 周家云. 西藏达雄群的化石新资料和再认识[J]. 地质通报, 2002, 21(11): 784-786.
    引用本文: 石和, 陶晓风, 胡新伟, 马润则, 刘登忠, 周家云. 西藏达雄群的化石新资料和再认识[J]. 地质通报, 2002, 21(11): 784-786.
    SHI He, TAO Xiaofeng, HU Xinwei, MA Runze, LIU Dengzhong, ZHOU Jiayun. Some new fossil materials and new understanding of the Daxiong Group in Tibet[J]. Geological Bulletin of China, 2002, 21(11): 784-786.
    Citation: SHI He, TAO Xiaofeng, HU Xinwei, MA Runze, LIU Dengzhong, ZHOU Jiayun. Some new fossil materials and new understanding of the Daxiong Group in Tibet[J]. Geological Bulletin of China, 2002, 21(11): 784-786.

    西藏达雄群的化石新资料和再认识

    Some new fossil materials and new understanding of the Daxiong Group in Tibet

    • 摘要: 在达雄群中新发现的双壳Ludbrookiadaxungensis,L.daxungensis,Rasatrixcf.suzulii,Arcticasubextensa及腹足Biplicaobliqu等化石,具早白垩世动物群组合面貌,表明该群的沉积时代大致为早白垩世欧特里夫—阿尔布期(Hauterivian-Albrian),而不是前人划归的中—晚侏罗世,与区内的早白垩世则弄群上部相当。

       

      Abstract: The bivalves Ludbrookia daxungensis,L.daxungensis,Rasatrix cf.suzulii and Arctica subexten-sa and the gastropod Biplica obliqu discovered in the Dawaxung Group have the features of the Creta-ceous fauna,which suggests that the Dawax ung Group was deposited in the Early Cretaceous Hauterivian-Albrian rather than in the Mid-Upper Jurassic and corresponds completely with the upper part of the Ze-long Group in the area.

       

    /

    返回文章
    返回