辽南、苏皖北部、鲁西鲁东晚前寒武纪地层的划分与对比

    DIVISION AND CORRELATION OF LATE PRECAMBRIAN STRATA IN SOUTHERN LIAONING, NORTHERN JIANGSU AND ANHUI, WESTERN AND EASTERN SHANDONG

    • 摘要: 辽南、苏皖北部地区的晚前寒武纪地层层序,以及鲁东蓬莱群与鲁西土门群的上下层位,存在着"叠接"与"叠置"的错误.本文通过对辽南及苏皖北部地区的晚前寒武纪地层层序和鲁东蓬莱群与鲁西土门群层位问题进行深入剖析,在厘清地层层序的基础上提出新的划分与对比方案.新方案中这些地层在我国晚前寒武纪地层柱中的位置,反应出了震旦系与青白口系的地史演化及生物演化间的重要关系.

       

      Abstract: Some mistakes of "super-contacting" or "superimposing" remained in the Late Precambrian stratigraphic sequence in southern Liaoning Province and the north of Jiansu and Anhui Provinces, and between Penglai group in Eastern Shandong and Tumen group in Western Shandong. A new division and correlation plan is proposed on the basis of a clear division regulation of stratigraphic sequence, after a detailed study on the strata in the areas. In the new plan, the position of the studied strata in the stratigraphic column of Late Precambrian of China shows an impotant relation between Sinian System and Qingbaikou System on the geologic and biologic evolution.

       

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