摘要
根据孢粉化石组合、岩性及地震剖面特征,并与邻区标准地层剖面进行对比分析,确定沙南凹陷沙河街组三段之下、中生界之上的“红层”为孔店组,时代为始新世。
Based on the sporopollen assemblage,lithology,seimic profile interpretation and correlated to
the neighbor standard stratigraphic section,we found that the "red beds" between the third mem
ber of Shahejie formation and the lying Mesozoic in the Shanan sag belonged to the same strati-
graphic sequence-Kongdian formation. Its age is Eocene.