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通过对山东平邑—蒙阴地区古近纪地层的野外地质调查和实测剖面,对分布于该区内的古近系进行了详细的研究和划分,提供了新的ESR测年数据,并结合生物地层序列确定了该区古近系的地层顺序为:古近系渐新统汶东组(E3w)、古近系上始新统大汶口组(E23d)、古近系中始新统朱家沟组(E22z)、古近系下始新统常路组(E21c)、古近系上古新统卞桥组(E12b)和古近系下古新统固城组(E11g)。为华北地区乃至全国古近系的研究与划分提供了重要依据。
Based on the field geological survey and the measured section of Paleogene strata in Pingyi-Mengyin area, Shandong Province, the Paleogene distributed in this area has been studied and classified in detail, and new ESR dating data have been provided The sequence of biostratigraphy confirms the sequence of Paleogene strata in this area: the E3w of Paleogene, the Ewenndocene Dawenkou Formation (E23d) of Paleogene, the Paleo-Eocene Zhujiagou Formation (E22z), Paleogene Lower Eocene Changzhi Formation (E21c), Paleogene Bianqiao Formation (E12b) and Paleogene Gucheng Formation (E11g). It provides an important basis for the research and division of Paleogene in North China and the whole country.