山东省大盛群孢粉组合及其年代地层意义

PALYNOLOGICAL ASSEMBLAGE FROM THE DASHENG GROUP AND ITS SIGNIFICANCE IN SHANDONG PROVINCE

大盛群为一套陆相碎屑沉积岩系 ,其中的孢粉化石可以归纳为 Schizaeoisporites- Ephedripites- Tricolpites(SET)组合 ,希指蕨孢属 Schizaeoisporites、克拉梭粉属 Classopollis、麻黄粉属 Ephedripites及隐孔粉属 Exesipolle-nites为优势属群 ,两气囊花粉个别出现 ,以早期被子植物花粉大量出现为特征 ,主要为三沟型被子植物花粉。

The Dasheng Group in Shandong Province is made up of continental including pyroclastic rocks. The Schizaeoisporites Ephedripites Tricolpites(SET) Assemblage from the Dasheng Group is characterized by the dominance of Schizaeoisporites,Classopollis, Ephedripetes and Exesipollenites . The Bisacca pollengiains are rare. It is characterized by the abundant presence of early angiospermous pollen (10 per cent) mainly Tricolpites. The SET assemblage is assigned Cenomanian-Turonian in age.