浙江天台地区赖家组的划分与分布

    Redefinition and distribution of the Laijia Formationin the Tiantai basin, Zhejiang Province

    • 摘要: 赖家组建于1978年,根据岩性特征曾划分出a、b两段。该组产出恐龙骨骼和恐龙蛋等化石,20多年来在国内外引起关注。1994年赖家组一名被废弃,由两头塘组和赤城山组替代。本文用新修订的“赖家组”代表原赖家组a段地层,赤城山组代表原赖家组b段地层,并对天台盆地上白垩统分布做出修改。

       

      Abstract: The Late Cretaceous Laijia Formation and Chichengshan Formation are redefined in this paper. The former was established in 1978. According to the lithological character, it was originally divided into members a and b. Because it yields plenty of dinosaur skeletons and eggs, the formation has aroused attention of domestic and oversea scientists in the part twenty years. In 1994 this formation was abolished and replaced by the Liangtoutang and Chichengshan Formations. After a detailed field study and systematic analysis, the authors revised the distribution of the Upper Cretaceous in the Tiantai basin and the Laijia Formation. The revised Laijia Formation stands for member a of the Laijia Formation and the Chichengshan Formation for member b.

       

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