对山东胜利油田第四系2个钻孔300余块样品进行了分析，发现沟鞭藻、颗石藻、绿藻和疑源类等微体浮游藻类化石。简要报道了藻类化石的分布情况和组合特征。结合介形虫和有孔虫资料，探讨了该区第四纪沉积环境的变迁，进一步证实该区自中更新世以来发生过4次较大规模的海进海退。

The microphytoplanktonic fossils including dinoflagellates, coccoliths, acritarchs and chlorophyta are discovered in Shengli oil field of Shandong Province by analyzing more than 300 samples of Quaternary from 2 drilling holes, and the characters of their distributions and assemblages are briefly reported in this paper. According to these results and the materials of ostracods and foraminifers, the changes of depositional environments of Quaternary in this region are studied, and that 4 relatively large scale transgressions and regressions had taken place since Middle Pleistocene is furthermore verified.

Q914.82 Q914.5

国家自然科学基金委员会特殊学科点人才基金 (No .990 70 5 )，中国科学院古生物与古人类学科基础研究特别支持费 (No .0 0 0 40 4)资助课题