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浙江侏罗—白垩纪的地层系统,是以浙东的永康盆地和浙西的寿昌盆地为基础建立起来的.而这两个盆地的地层对比(主要是寿昌组与馆头组能否对比),随着丽水老竹盆地地层的深入研究而基本得到解决.现将老竹盆地下桥的地层剖面介绍如下: 上覆地层:永康群朝川组:暗紫红色粉砂质泥岩夹砂岩和砂砾岩.
The Jurassic-Cretaceous stratigraphic system in Zhejiang was established on the basis of the Yongkang basin in eastern Zhejiang and the Shouchang basin in western Zhejiang, and the stratigraphic correlation between the two basins Contrast), with the Lishui Laozhu Basin stratum in-depth study and has been basically solved. Now the stratum profile of the lower bridge in the Laozhu Basin are described as follows: Overlying strata: Yongkang Group Chaochuan Formation: dark purple red silty mudstone sandstone and Sand conglomerate.